In this post, I will teach you to create a rolling dice program in visual basic 6. The program will consist of a single dice with six dots representing numbers between 1 to 6 and button to roll the dice. After you have clicked the rolling button, the dice will give you a random number between 1 to 6.
Prerequisites
To create this program, you need to have a computer that runs at least Windows XP Sp3 or above and Visual basic 6.0. I am running a virtual machine with Windows XP Sp3 which will also work, in case, you have a higher version of windows system.
Design Form for Rolling Dice program
The first step is to open the Visual basic 6 program and create a new standard.exe form. In this form we will create shapes and buttons. Assuming that you know about toolbar, click on the Shape object from the toolbar and create a rectangle shape.
Figure 1 – Click Shape object and draw a rectangle shape
Form Properties
Name: frmRollDIce
Caption: Rolling Dice
Height: 7350
Width:9750
Now, you can set the properties of the above shape as given below.
Now, you can create black round shapes to simulate an actual dice. Since, we cannot show all the face of the dice, show only one face with 6 dots, that is, the maximum number that the dice can get when you roll it.
Click on the shape object again and create a single small rectangle inside dice shape you created earlier. Set the properties of this object as follows.
Copy the black round shape and paste in the dice shape 5 more times. When you try to paste the shape object, you should receive a warning shown below.
Figure 2 – Warning when try to copy the existing shape
Click on Yes and continue to copy the black round shape 5 more times and arrange them in the following order. You should end up with following form design.
Figure 3- Positions for black circles for rolling dice program
The arrangement of dice is up to you, and you may use the Format tab on Visual basic 6 for align the back circles.
Button to Roll Dice
Now it is time to add button for rolling the dice and getting a random number. Add a button object to the form and set the following properties.
Name: cmdRoll
Caption: Roll Dice
Backcolor: &H0000FFFF&
Style: 1-Graphical
Font: MS Sans Serief 14 Bold
Your final form should look like the following.
Figure 4 – Final form design
I have added a background color to the main form, you can also change the look and feel of your form design or leave it as it is.
Code for Rolling Dice Program
The only code required here is for the button – Roll Dice because all action is going to happen when you click on the button only.
Add the following code to the button control.
Private Sub cmdRoll_Click()
n = Int(1 + Rnd * 6)
For i = 0 To 6
Shape1(i).Visible = False
Next
If n = 1 Then
Shape1(6).Visible = True
End If
If n = 2 Then
Shape1(1).Visible = True
Shape1(4).Visible = True
End If
If n = 3 Then
Shape1(0).Visible = True
Shape1(6).Visible = True
Shape1(5).Visible = True
End If
If n = 4 Then
Shape1(0).Visible = True
Shape1(2).Visible = True
Shape1(3).Visible = True
Shape1(5).Visible = True
End If
If n = 5 Then
Shape1(0).Visible = True
Shape1(2).Visible = True
Shape1(3).Visible = True
Shape1(5).Visible = True
Shape1(6).Visible = True
End If
If n = 6 Then
Shape1(0).Visible = True
Shape1(1).Visible = True
Shape1(2).Visible = True
Shape1(4).Visible = True
Shape1(5).Visible = True
Shape1(3).Visible = True
End If
End Sub
You program is completed and now you can try to roll the dice and see how it works. If there is a problem, recheck the code.
Visual Basic 6 is a GUI based object-oriented programming language.
You can develop software with visual basic much faster than other programming languages. Visual basic follow the rapid application model also known as RAD model.
Doing projects is a great way to learn visual basic programming. A visual basic project not only gives you an idea about software development, but also teaches you project planning and process involved in finishing the project successfully.
Prerequisites
To take maximize your learning, you must complete these prerequisites because visual basic seems to be an easy programming language, but it is not.
VB 6 Tutorial – you must be familiar with VB IDE and coding practices before creating your first project. You can do this in two ways – one, visit our VB tutorial page or read a visual programming book.
Microsoft Access – this is necessary for connecting your project to a data source, only if its a project requirement. For some projects you can use Microsoft Excel or SQL as the data sources.
Whether you are a student or self-learner, it is hard to learn programming without a good book. I recommend few good books here which has detailed information about Visual Basic 6.0 programming. It is also necessary because Microsoft has stopped supporting Visual basic 6; now they have more advanced version of visual basic in the form of VB.Net and other versions. However, the language of modern visual basic is more or less the same.
In this post, we will create an application for Student Record Management System in Visual Basic 6 with Microsoft Access Database.
The list of Modules and Forms used in the program as follows.
(A) frmStudentManagement System
Caption: STUDENT RECORD MANAGEMENT SYSTEM
(B) frmLogin
Caption: LOGIN
(C) frmCourse
Caption: COURSE DETAILS
(D) frmStudentDetails
Caption: STUDENT DETAILS
(E) Module1.Bas
System Design
First, we will design the System Model and simple high-level diagram of each module will be enough. There are many kind of the diagram to model a system especially when you are using Object-Oriented design. These models are specified in Unified Modelling Language (UML) which not scope of this post.
A student must Log In to access the System
The Administrator has to log in to the system with username and password provided during registration process. No one is allowed to log in without a proper User ID and Password.
Administrators must provide valid Username and Password
Once the Administrators logged in they can see form for Student Details where they can Insert, Delete, Update and Clear the Student Records. They also have the option to go to First Record, Last Record, Next Record and Previous Record.
Maintain Student Record using Student Details Form
Next, there is an option to maintain the Course Details, when you click a Specific button. We will discuss that later.
Course Details
Data Model
ER Model
ER Diagram for Student Management
Tables
First steps after creating the data model are to make sure that you create an MS Access Database called StudentDB.mdb. If you have MS Access 2007 or higher version, save your database with the file extension (.mdb).
Create the following table with correct data types as shown in the following figures.
Course Table in Design View
Login Table in Design View
Components of frmStudentManagent System
Form Student Management System
Labels
Name :lblStudentManagement
Caption : Student Management System
Font: MS Sans Serif
Font-Size: 24 PX
Font-Weight : Bold
Buttons
Name : btnLogin
Caption: Log in
Font: MS-Sans-Serif
Font-weight:Bold
Font-Size: 10px
Code for frmStudentManagement System
Private Sub Login_Click()
frmLogin.Show
End Sub
Components of frmLogin
Login Form – Student Management
Labels
Name: lblUserID
Caption : User Name:
Name : lblPassword
Caption: Password
Text-Boxes
Name : txtUserID
Text : 'leave blank'
Name : txtPassword
Text : 'leave blank'
Buttons
Name : cmdOK
Caption : Log in
Name : cmdCancel
Caption : Cancel
Code for frmLogin
Option Explicit
Dim rs As New ADODB.Recordset
Dim con As New ADODB.Connection
Dim constr As String
Public LoginSucceeded As Boolean
Private Sub cmdCancel_Click()
'set the global var to false '
'to denote a failed login '
LoginSucceeded = False
Me.Hide
End Sub
Private Sub cmdOK_Click()
Dim userfound As Boolean
With rs .Open "SELECT * FROM LOGIN",
con, adOpenDynamic, adLockOptimistic
'check the username '
.MoveFirst While Not .EOF
If txtUserName = !RollNo And
txtPassword = !Password Then
frmSTUDREC.Show
LoginSucceeded = True
Exit Sub
Me.Hide
ElseIf
txtUserName <> !RollNo Then
.MoveNext
Else
MsgBox "Invalid Password, try again!", ,
"Login" txtPassword.SetFocus
SendKeys "{Home}+{End}"
Exit Sub
End If
Wend
.Close
End With
End Sub
Private Sub Form_Load()
Call loadcon
MsgBox ("connected")
End Sub
Components of frmCourse
Form Course Details – Student Management
Labels
Name : lblCID
Caption: Course ID
Name : lblCname
Caption : Course Name
Name : lblDuration
Caption : Duration(Semester):
Text-Boxes
Name : txtCID
Text : 'leave blank'
Name : txtCname
Text : 'leave blank'
Name : txtDuration
Text : 'leave blank'
Buttons
Name : cmdAdd
Caption : &ADD NEW COURSE
Name : cmdDel
Caption : &DELETE COURSE
Name : cmdDisplay
Caption : &DISPLAY ENROLLED STUDENTS
Name : cmdExit
Caption : &EXIT
Name : cmdFirst
Caption : First Record
Name : cmdLast
Caption : :Last Record
Name : cmdNext
Caption : Next Record
Name ; cmdPrev
Caption : Previous Record
Code for frmCourse
Dim con As New ADODB.Connection
Dim rs As New ADODB.Recordset
Dim constr As String
Private Sub cmdAddCourse_Click()
con.Execute "INSERT INTO
Course(CourseID, CourseName, Duration)
VALUES ('" + txtCID.Text + "','" +
txtCNAME.Text + "','" + txtDURATION.Text + "')"
txtCID.Text = "" txtCNAME.Text = "" txtDURATION.Text = ""
con.Close
End Sub
Private Sub cmdDelCourse_Click()
con.Execute "DELETE * FROM COURSE
WHERE CourseID = " &
txtCID & ""
End Sub
Private Sub cmdDisplay_Click()
Dim rsGrid As New ADODB.Recordset
con.CursorLocation = adUseClient rsGrid.CursorLocation
= adUseClient rsGrid.CursorType = adOpenStatic
rsGrid.Open "SELECT * FROM Student_Records
WHERE CourseID = " &
txtCID & "",
con, adOpenForwardOnly, adLockPessimistic
Set DataGrid1.DataSource = rsGrid
End Sub
Private Sub cmdFirst_Click()
With rs .Open "SELECT * FROM Course",
con, adOpenDynamic, adLockOptimistic
While Not .EOF
txtCID.Text = rs!CourseID
txtCNAME.Text = rs!CourseName
txtDURATION.Text = rs!Duration
.MoveFirst
Wend
End With
End Sub
Private Sub cmdLast_Click()
With rs .Open "SELECT * FROM Course",
con, adOpenDynamic, adLockOptimistic
While Not .EOF
txtCID.Text = rs!CourseID
txtCNAME.Text = rs!CourseName
txtDURATION.Text = rs!Duration
.MoveLast
Wend
End With
End Sub
Private Sub cmdNext_Click()
With rs .Open "SELECT * FROM Course",
con, adOpenDynamic, adLockOptimistic
While Not .EOF
txtCID.Text = rs!CourseID
txtCNAME.Text = rs!CourseName
txtDURATION.Text = rs!Duration
.MoveNext
Wend
End With
End Sub
Private Sub cmdPrev_Click()
With rs .Open "SELECT * FROM Course",
con, adOpenDynamic, adLockOptimistic
While Not .EOF
txtCID.Text = rs!CourseID
txtCNAME.Text = rs!CourseName
txtDURATION.Text = rs!Duration
.MovePrevious
Wend
End With
End Sub
Private Sub Form_Load()
Call loadcon
MsgBox ("Connected")
End Sub
Components of frmStudentDetails
Form Student Record Details – Student Management
Labels
Name : lblStudentID
Caption : STUDENT ID
Name : lblFirstName
Caption : FIRST NAME:
Name : lblLastName
Caption : LAST NAME:
Name : lblCourseID
Caption : COURSE ID
Name : lblGrade
Caption : GRADE
Text-Boxes
Name : txtStudentID
Text : 'leave blank'
Name : txtFirstName
Text : 'leave blank'
Name : txtLastName
Text : 'leave blank'
Name : txtCourseID
Text : 'leave blank'
Name : txtGrade
Text : 'leave blank'
Buttons
Name : cmdAdd
Caption : &ADD
Name : cmdDel
Caption: &DELETE
Name : cmdUpdatev
Caption : &UPDATE
Name : cmdClear
Caption : &CLEAR
Name : cmdExit
Caption : &EXIT
Name : cmdDisplay
Caption : &DISPLAY
Name : cmdStudentCourses
Caption : Student Courses
Name: cmdNext
Caption : &Next Record
Name : cmdPrev
Caption : &Previous Record
Name : cmdFirst
Caption : &First Record
Name : cmdLast
Caption : &Last Record
Data Grid Control
Name : DataGrid1
Code for frmStudentDetails
Dim con As New ADODB.Connection
Dim rs As New ADODB.Recordset
Dim constr As String
Private Sub btnCourse_Click()
Unload Me
frmCourse.Show
End Sub
Private Sub cmdData_Click()
Dim rsGrid As New ADODB.Recordset
con.CursorLocation = adUseClient
rsGrid.CursorLocation = adUseClient
rsGrid.CursorType = adOpenStatic
rsGrid.Open "SELECT * FROM Student_Records",
con, adOpenForwardOnly, adLockPessimistic
Set DataGrid1.DataSource = rsGrid
End Sub
Private Sub cmdDel_Click()
con.Execute "DELETE * FROM
STUDENT_RECORDS WHERE RollNo = " &
(Text1.Text) & ""
MsgBox ("Record Deleted Successfully")
End Sub
Private Sub cmdExit_Click()
Unload Me
End Sub
Private Sub cmdFirst_Click()
With rs
.Open "SELECT * FROM STUDENT_RECORDS",
con, adOpenDynamic, adLockOptimistic
Text1.Text = rs!RollNo
Text2.Text = rs!FirstName
Text3.Text = rs!LastName
Text4.Text = rs!CourseID
Text5.Text = rs!Grade
.MoveFirst
.Close
End With
End Sub
Private Sub cmdLast_Click()
With rs
.Open "SELECT * FROM STUDENT_RECORDS",
con, adOpenDynamic, adLockOptimistic
Text1.Text = rs!RollNo
Text2.Text = rs!FirstName
Text3.Text = rs!LastName
Text4.Text = rs!CourseID
Text5.Text = rs!Grade
.MoveLast
End With
End Sub
Private Sub cmdNext_Click()
With rs
.Open "SELECT * FROM STUDENT_RECORDS",
con, adOpenDynamic, adLockOptimistic
While Not .EOF
Text1.Text = rs!RollNo
Text2.Text = rs!FirstName
Text3.Text = rs!LastName
Text4.Text = rs!CourseID
Text5.Text = rs!Grade
.MoveNext
Wend
.Close
End With
End Sub
Private Sub cmdPrev_Click()
With rs
.Open "SELECT * FROM STUDENT_RECORDS",
con, adOpenDynamic, adLockOptimistic
While Not .EOF
Text1.Text = rs!RollNo
Text2.Text = rs!FirstName
Text3.Text = rs!LastName
Text4.Text = rs!CourseID
Text5.Text = rs!Grade
.MovePrevious
Wend
End With
End Sub
Private Sub cmdSave_Click()
con.Execute "UPDATE STUDENT_RECORDS
SET FirstName = '" & Text2 & "',
LastName = '" & Text3 & "',
CourseID =" & Text4 & ",
Grade = '" & Text5 & "'
WHERE RollNo = " & Text1 & ""
MsgBox ("Record Updated")
End Sub
Private Sub Form_Load()
constr = "Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:UsersGirishDocumentsStudentDB.mdb;
Persist Security Info=False"
con.Open constr
End Sub
Private Sub cmdAdd_Click()
con.Execute "INSERT INTO
STUDENT_RECORDS(RollNo,FirstName,LastName,CourseID,Grade)
VALUES ('" + Text1.Text + "','" +
Text2.Text + "','" +
Text3.Text + "','" +
Text4.Text + "','" +
Text5.Text + "')"
Text1.Text = ""
Text2.Text = ""
Text3.Text = ""
Text4.Text = ""
Text5.Text = ""
con.Close
End Sub
Code for Module1.Bas
The Module1.Bas is the code for connection to Microsoft Access Database. Since you may not want to define this connection on each form that is used in the application.
Public Sub loadcon()
constr = "Provider=Microsoft.Jet.OLEDB.4.0;
Data Source=C:UsersGirishDocumentsStudentDB.mdb;
Persist Security Info=False"
con.Open constr
End Sub
Note :The C:\Users\Peter\Documents\StudentDB.mdb; is path to the Access database , you need to change is according to path of your Student Database.
This article will help you to develop a library management system in Visual basic 6.0 with MS Access as database. To help you understand the project, we have included system diagram , er diagram, table design in MS Access and VB 6 form designs.
User Activities
Since, this is a medium size project we don’t need use- case diagrams. However, you are free to use them and modify the project. The main activities of the library management system are:
Managing members information that includes adding, deleting, updating, and displaying member records.
Each library member including admin must login to perform any transaction. Therefore, a user ID and password is given to every member.
Managing book details in the library such as adding , deleting, updating, and displaying book information. Each book has member ID of the person who borrowed the book recently. Therefore, looking at book details we know who has the book from the library.
Every member can check the availability of the book before borrowing it.
The library management system you develop must contain the following modules.
frmLibraryManagement (Main Form)
frmLogin (Login Form)
frmBook (Book Form)
frmMember (Member Form)
frmBorrow (Book Borrow Form)
frmMenu (MDI Form)
Module1.bas (Module)
Project explorer showing all forms
System Design
The library management main form with login button is displayed to the users. The users login to access the menu (MDI Form). The users can manage books or members at anytime within menu form . Also,members can check availability of books and borrow it if available.
The system diagram shows how the overall system works.
System Diagram -Library Management System using VB 6 with MS Access
Data Model – ER Diagram
The ER diagram or entity-relationship diagram begins with identifying all entities of the project. You can write activities or use an activity diagram to identify entities.
Member has user ID and password.
Member can borrow books and return after use.
A single book is allocated to only one member.
Member can check availability of a book.
Book details and Catalog of all books in library.
From above description we identified three entities and their relationships.
Borrow and Return
Library member
Book Details
The ER diagram is below shows relationship between all entities.
ER Diagram For Library Management Project
Location of the Database
In the next section, you will be creating a database in MS Access 2003; therefore, you must create the database in following location – C:/VBProjects/Library/library.mdb for this project to work. If the path is incorrect, the program will not run successfully.
MS Access Database Location – C:/VBProjects/Library/library.mdb
Relational Model – Tables
Now we need to convert the ER Model to a Relational Model which means creating a table for each entity in the ER Model.
Book Table
The book table in Access Design View is given below. One of the Field Name is “Primary Key”, in this case, BookID.
Book Table – Library Management System
Member Table
The screenshot for the Member table in Microsoft Access Design View is given below. The Field Name “MemberID” is the “Primary Key” for this table”.
Member Table – Library Management System
Borrow Table
The third table in MS Access Design View is Borrow. This table has multiple fields that serve as the “Primary Key”. The primary key are BookID, MemberID, and Return.
Borrow Table – Library Management System
Note: Primary Key is a field that uniquely identifies each row in the table.
Relationship
A relationship is MS Access is similar to the e-r diagram we created previously. We can use the e-r diagram to create relationships between tables.
To view or create relationships among tables, go to Database Tool from the Toolbar > [Click] Relationship under Show/Hide.
Relationships Between Tables – Library Management System
The relationship between Member and Borrow is called One-to-Many and the relationship between Book and Borrow is One-to-Many.
Relationship Types
Connect to MS Access Database Using Module1.bas
All form need to connect to Microsoft Access Database but you may have to write the code for connection in each form. It there is a large number of forms in the project, say 10, then these extra line of codes become redundant. To save us from this trouble, create Module1.bas file from Project1.vbp windows.The code for Module is given below.
Public con As New ADODB.Connection
Public rs As New ADODB.Recordset
Public constr As String
Public Sub loadcon()
constr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\VBProjects\Library\library.mdb;Persist Security Info=False"
con.Open constr
End Sub
Components for frmLibraryManagement
You can design the interface for each of the forms in Visual Basic now. However, you must rename them properly for sake of coding. Let’s create components for frmLibraryManagement as follows and rename them.
Form Library Management System
Form Details
Name:frmLibraryManagement
Caption :LIBRARY MANAGEMENT SYSTEM
BackColor :Window Text
ForeColor : Highlight Text
Now add a frame control and add all other controls on top of it.
Frame
Name:frameLibraryManagement
Caption :Library Management
BackColor :Window Text
ForeColor : Highlight Text
Labels
Name : lblLibraryManagement
Caption : LIBRARY MANAGEMENT SYSTEM
BackColor :Window Text
ForeColor : Highlight Text
Font :Arimo 18px Bold
Name : lblCompany
Caption : NotesforMSc
BackColor :Window Text
ForeColor : Highlight Text
Font : MS Sans-serif 12px Bold
Name : lblCopyright
Caption : Copyright : https://notesformsc.org
BackColor :Window Text
ForeColor : Highlight Text
Font : MS Sans-serif px Bold
Buttons
Name : cmdLogin
Caption : Login
BackColor : Button Highlight
Font : MS Sans-serif 12px Bold
Style :1-Graphical
Code for frmLibraryManagement
Private Sub cmdLogin_Click()
frmLogin.Show
Unload Me
End Sub
Components for frmLogin
The login screen is different because you want password to be hidden when you type them. To create Login dialog, {Right-Click] Project.vbp > Select Add > [Click] Form. The new form dialog box will appear, select Log in Dialog.
Login Dialog – Library Management System
Now we must rename and change the code for frmLogin.
Form Login – Library Management System
Form Details
Name : frmLogin
Caption :Login
BackColor: WindowText
ForeColor : Highlight Text
Labels
Name : lblUserID
Caption : UserID
BackColor : Window Text
ForeColor : Highlight Text
Name : lblPassword
Caption : Password
BackColor : Window text
ForeColor : Highlight Text
Text-Boxes
Name: txtUserID
Text : 'leave blank'
Name : txtPassword
Text : 'leave blank'
Buttons
Name : cmdOk
Caption : OK
Name: cmdCancel
Caption : Cancel
Code for frmLogin
Option Explicit
Public LoginSucceeded As Boolean
Private Sub cmdCancel_Click()
'set the global var to false
'to denote a failed login
LoginSucceeded = False
Me.Hide
End Sub
Private Sub cmdOK_Click()
rs.Open "SELECT * FROM Member ", con, adOpenDynamic, adLockReadOnly
While Not rs.EOF
If rs!MemberID = Val(txtUserID) Then
'check for correct password'
If rs!Pass = txtPassword Then
'place code to here to pass the '
'success to the calling sub'
'setting a global var is the easiest'
LoginSucceeded = True
frmMENU.Show
Me.Hide
con.Close
Exit Sub
Else
MsgBox "Invalid Password, try again!", , "Login"
txtPassword.SetFocus
SendKeys "{Home}+{End}"
End If
End If
rs.MoveNext
Wend
End Sub
Private Sub Form_Load()
Call loadcon
End Sub
Components for frmBook
All details of books are available from this form.You can add new books, delete a book, update book information, and view the entire books in the library from this form.
Library Management – frmBook
Form Details
Name : frmBook
Caption : Book Details
BackColor : Window Text
ForeColor : Highlight Text
First create a single frame control and add all other controls on top of it.
Name : frameBook
Caption : Book Details
BackColor : Window Text
ForeColor : Highlight Text
Labels
Name : lblBookMain
Alignment : Center
Caption : Book Details
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 18px Bold
Name : lblBookID
Alignment : Center
Caption : BOOK ID
BackColor : Window Text
ForeColor : Highlight Text
Font : MS Sans-serif 8px Bold
Name : lblBookTitle
Alignment : Center
Caption : BOOK TITLE
BackColor : Window Text
ForeColor : Highlight Text
Font : MS Sans-serif 8px Bold
Name : lblAuthor
Alignment : Center
Caption : AUTHOR
BackColor : Window Text
ForeColor : Highlight Text
Font : MS Sans-serif 8px Bold
Name : lblBNote
Alignment : Center
Caption : NOTE:
BackColor : Window Text
ForeColor : Highlight Text
Font : MS Sans-serif 8px Bold
Name : lblBInstruction
Alignment : Center
Caption : Only use BOOK ID for DISPLAY
BackColor : Window Text
ForeColor : Highlight Text
Font : MS Sans-serif 8px Bold
Option Explicit
Private Sub cmdBAdd_Click()
Call loadcon
con.Execute "INSERT INTO Book (BookID, BookTitle, Author) VALUES (" & txtBookID & ",'" & txtBookTitle & "','" & txtAuthor & "')"
MsgBox ("Record Inserted Successfully")
con.Close
End Sub
Private Sub cmdBCatalog_Click()
Call loadcon
rs.CursorLocation = adUseClient
rs.Open "Book", con, adOpenKeyset, adLockBatchOptimistic, adCmdTable
If Dir$("C:/VBProjects/Library/savebookquery.xml") <> "" Then
Kill "C:/VBProjects/Library/savebookquery.xml"
End If
rs.Save "C:/VBProjects/Library/savebookquery.xml", adPersistXML
rs.Close
con.Close
Set rs = Nothing
rs.Open "C:/VBProjects/Library/savebookquery.xml", , adOpenKeyset, adLockBatchOptimistic, adCmdFile
Set BookFinder.DataSource = rs
Set rs = Nothing
End Sub
Private Sub cmdBDelete_Click()
Call loadcon
con.Execute "DELETE * FROM Book WHERE BookID = " & txtBookID & ""
MsgBox ("Record Deleted Successfully")
con.Close
End Sub
Private Sub cmdBDisplay_Click()
Call loadcon
rs.CursorLocation = adUseClient
rs.Open "SELECT Book.[BookID], Book.[BookTitle],Borrow.[MemberID],Member.[MemberName],Borrow.[StartDate] FROM Book,Borrow,Member WHERE Book.[BookID] = " & txtBookID & " And Book.[BookID]= Borrow.[BookID]And Borrow.[MemberID]=Member.[MemberID] And Borrow.[Return] = 0", con, adOpenDynamic, adLockOptimistic
If Dir$("C:/VBProjects/Library/savebookdisplay.xml") <> "" Then
Kill "C:/VBProjects/Library/savebookdisplay.xml"
End If
rs.Save "C:/VBProjects/Library/savebookdisplay.xml", adPersistXML
rs.Close
con.Close
Set rs = Nothing
rs.Open "C:/VBProjects/Library/savebookdisplay.xml", , adOpenKeyset, adLockBatchOptimistic, adCmdFile
Set BookFinder.DataSource = rs
Set rs = Nothing
End Sub
Private Sub cmdBExit_Click()
Unload Me
End Sub
Private Sub cmdBUpdate_Click()
Call loadcon
con.Execute "UPDATE Book SET BookTitle = '" & txtBookTitle & "', Author = '" & txtAuthor & "' WHERE BookID = " & txtBookID & ""
MsgBox ("Record Updated Successfully")
con.Close
End Sub
Private Sub cmdClear_Click()
txtBookID.Text = " "
txtBookTitle.Text = " "
txtAuthor.Text = " "
End Sub
Components for frmMember
This form will provide information about library members including the book they currently borrowed. You can create new members, delete members, and update their information except except MemberID.
Library Management – frmMember
Form Details
Name : frmMember
Caption : Member
BackColor : Window Text
ForeColor : Highlight Text
Frame Control
Name : frameMember
Caption : Member Registration
BackColor : Window Text
ForeColor : Highlight Text
Now you can start adding all the other control on top of frame. You want to make controls visible on frame,then right click frame and click send to back.
Labels
Name :lblMemberMain
Alignment :Center
Caption : Member Information
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 18px Bold
Name :lblMID
Caption : Member ID
BackColor : Window Text
ForeColor : Highlight Text
Font :MS Sans-serif 8px Bold
Name :lblMName
Caption : Member Name
BackColor : Window Text
ForeColor : Highlight Text
Font :MS Sans-serif 8px Bold
Name :lblMNote
Caption : NOTE:
BackColor : Window Text
ForeColor : Highlight Text
Font :MS Sans-serif 8px Bold
Name :lblMInstruction
Caption : Only use Member ID before DISPLAY
BackColor : Window Text
ForeColor : Highlight Text
Font :MS Sans-serif 8px Bold
Textboxes
Name: txtMID
Text :'leave blank'
Name: txtMName
Text :'leave blank'
Name: txtMPass
Text :'leave blank'
Buttons
Name :cmdMAdd
Caption : &ADD
BackColor : Window Text
Style : 1-Graphical
Name :cmdMDel
Caption : &DELETE
BackColor : Window Text
Style : 1-Graphical
Name :cmdMUpdate
Caption : &UPDATE
BackColor : Window Text
Style : 1-Graphical
Name :cmdMDisplay
Caption : &DISPLAY
BackColor : Window Text
Style : 1-Graphical
Name :cmdMClear
Caption : &CLEAR
BackColor : Window Text
Style : 1-Graphical
Name :cmdMExit
Caption : &EXIT
BackColor : Window Text
Style : 1-Graphical
Name :cmdMAllMember
Caption : &Show Members
BackColor : Window Text
Style : 1-Graphical
DataGrid Control
Name :MemberFinder
Code for frmMember
Private Sub cmdAllMember_Click()
Call loadcon
rs.CursorLocation = adUseClient
rs.Open "Member", con, adOpenKeyset, adLockBatchOptimistic, adCmdTable
If Dir$("C:/VBProjects/Library/saveshowmembers.xml") <> "" Then
Kill "C:/VBProjects/Library/saveshowmembers.xml"
End If
rs.Save "C:/VBProjects/Library/saveshowmembers.xml", adPersistXML
rs.Close
con.Close
Set rs = Nothing
rs.Open "C:/VBProjects/Library/saveshowmembers.xml", , adOpenKeyset, adLockBatchOptimistic, adCmdFile
Set MemberFinder.DataSource = rs
Set rs = Nothing
End Sub
Private Sub cmdMAdd_Click()
Call loadcon
con.Execute "INSERT INTO Member (MemberID,MemberName,Pass) VALUES (" & txtMID & ",'" & txtMName & "','" & txtMPass & "')"
MsgBox ("Record Inserted Successfully")
con.Close
End Sub
Private Sub cmdMClear_Click()
txtMID.Text = " "
txtMName.Text = " "
txtMPass.Text = " "
End Sub
Private Sub cmdMDel_Click()
Call loadcon
con.Execute "DELETE * FROM Member WHERE MemberID = " & txtMID & ""
MsgBox ("Record Deleted Successully")
con.Close
End Sub
Private Sub cmdMDisplay_Click()
Call loadcon
rs.CursorLocation = adUseClient
rs.Open "SELECT Member.[MemberID],Member.[MemberName],Borrow.[Bookid],Borrow.[bookTitle]FROM Member, Borrow WHERE Member.[MemberID]= " & txtMID & " And Member.[MemberID] = Borrow.[MemberID] And Borrow.[Return]= 0", con, adOpenDynamic, adLockOptimistic
If Dir$("C:/VBProjects/Library/savememberdisplay.xml") <> "" Then
Kill "C:/VBProjects/Library/savememberdisplay.xml"
End If
rs.Save "C:/VBProjects/Library/savememberdisplay.xml", adPersistXML
rs.Close
con.Close
Set rs = Nothing
rs.Open "C:/VBProjects/Library/savememberdisplay.xml", , adOpenKeyset, adLockBatchOptimistic, adCmdFile
Set MemberFinder.DataSource = rs
Set rs = Nothing
End Sub
Private Sub cmdMExit_Click()
Unload Me
End Sub
Private Sub cmdMUpdate_Click()
Call loadcon
con.Execute "UPDATE Member SET MemberName = '" & txtMName & "',Pass = '" & txtMPass & "' WHERE MemberID = " & txtMID & ""
MsgBox ("Record Updated Successfully")
con.Close
End Sub
Components for frmBorrow
The form Borrow allows you to check the availability of books, and if the book is available you can borrow it. If member wants to return the book they can enter details of the book and return it immediately.
Library Management – frmBorrow
Form Borrow Details
Name : frmBorrow
Caption : Book Borrow
BackColor : Window Text
ForeColor : Highlight Text
Frame Controls
Name : frameBookBorrow
Caption : Book Borrow
BackColor : Window Text
ForeColor : Highlight Text
Name : frameAvailibility
Caption : Availibility
BackColor : Window Text
ForeColor : Highlight Text
Once you have created a frame control, add other controls on top of it. Also right click frame and send to back the frame.
Under the frame book borrow add following controls.
Labels
Name : lblBorrowMain
Caption : Book Borrow Details
BackColor : Window Text
ForeColor :Highlight Text
Font : Arimo 18px Bold
Name : lblBBookID
Caption : Book ID
BackColor : Window Text
ForeColor :Highlight Text
Font : MS Sans-serif 8px Bold
Name : lblBTitle
Caption : Book Title
BackColor : Window Text
ForeColor :Highlight Text
Font : MS Sans-serif 8px Bold
Name : lblBMemberID
Caption : Member ID
BackColor : Window Text
ForeColor :Highlight Text
Font : MS Sans-serif 8px Bold
Name : lblBorrowNote
Caption : NOTE:
BackColor : Window Text
ForeColor :Highlight Text
Font : MS Sans-serif 8px Bold
Name : lblBInstructions
Caption : Always CLEAR before any Query or Update
BackColor : Window Text
ForeColor :Highlight Text
Font : MS Sans-serif 8px Bold
Textboxes
Name : txtBBookID
Text : 'leave blank'
Name : txtBTitle
Text : 'leave blank'
Name : txtBMemberID
Text : 'leave blank'
Buttons
Name : cmdBorrow
Caption :&Borrow
BackColor : Window Text
ForeColor : Highlight Text
Style :1-Graphical
Name : cmdReturn
Caption :&Return
BackColor : Window Text
ForeColor : Highlight Text
Style :1-Graphical
Name : cmdBClear
Caption :&Clear
BackColor : Window Text
ForeColor : Highlight Text
Style :1-Graphical
Name : cmdExit
Caption :&Exit
BackColor : Window Text
ForeColor : Highlight Text
Style :1-Graphical
Now you can add controls under Check Availability frame.
Labels under Check Availability
Name : lblBBookTitle
Caption : Book Title
BackColor : Window Text
ForeColor : Highlight Text
Font : MS Sans-serif 8px Bold
Name : lblBResult
Caption : Result
BackColor : Window Text
ForeColor : Highlight Text
Font : MS Sans-serif 8px Bold
Textboxes
Name :txtBBookTitle
Text : 'leave blank'
Name :txtBResult
Text : 'leave blank'
Buttons
Name : cmdAvailibility
Caption :&Check Availibility
BackColor : Window Text
ForeColor : Highlight Text
Style :1-Graphical
Code for frmBorrow
Private Sub cmdAvailibility_Click()
Call loadcon
rs.CursorLocation = adUseClient
rs.CursorType = adOpenStatic
rs.Open "SELECT * FROM Borrow WHERE BookTitle = '" & txtBBookTitle & "' And Return = 0", con, adOpenDynamic, adLockOptimistic
If rs.RecordCount > 0 Then
txtBResult.Text = "Not Available"
Else
txtBResult.Text = "Available"
End If
rs.Close
con.Close
End Sub
Private Sub cmdBClear_Click()
txtBBookID.Text = ""
txtBMemberID.Text = " "
txtBBookTitle.Text = " "
txtBResult.Text = ""
txtBTitle.Text = " "
End Sub
Private Sub cmdBorrow_Click()
Call loadcon
rs.Open "INSERT INTO Borrow (BookID, MemberID, BookTitle,StartDate) VALUES (" & txtBBookID & "," & txtBMemberID & ",'" & txtBTitle & "',#" & Format(Now, "mm/dd/yyyy") & "#)", con, adOpenDynamic, adLockOptimistic
MsgBox ("Book Borrowed Successully")
con.Close
End Sub
Private Sub cmdExit_Click()
Unload Me
If con.State = adStateOpen Then
con.Close
End If
End Sub
Private Sub cmdReturn_Click()
Call loadcon
rs.CursorLocation = adUseClient
rs.CursorType = adOpenDynamic
rs.Open "UPDATE Borrow SET Return = 1 WHERE MemberID = " & txtBMemberID & " And BookID = " & txtBBookID & "", con, adOpenStatic, adLockReadOnly
MsgBox "Book Returned Successfully"
con.Close
End Sub
Components for frmMENU – MDI form
The frmMENU is a form with menu items and we can create a menu using the Menu Editor. To create a MDI form, [Right-Click] Project1.vbp > Select Add > [Click] MDI Form. Create following menu items using Menu Editor.
MDI Form with Menu – Form Book Details – Library Management System using VB 6 with MS Access
You have to create four menu items with following values. Do not change any other settings. However, you can use arrow buttons to move item up and down.
Borrow Book
Name : borrow
Caption : Borrow Book
Index: 3
Member Details
Name : members
Caption : Member Details
Index : 1
Book Details
Name : books
Caption : Book Details
Index : 2
Exit
Name : exit
Caption : Exit
Index : 0
Code for frmMenu
Before adding code for frmMENU, make sure you have created all other forms of the Library Management Project,
When you click on any menu item it will open another form within the parent MDI form. The other form that must open within MDI form should have their MDI child property set to True.
Set MDI Child Property to True
Add following code to frmMENU in from the code editor.
Private Sub books_Click(Index As Integer)
frmBook.Show
End Sub
Private Sub borrow_Click(Index As Integer)
frmBorrow.Show
End Sub
Private Sub exit_Click(Index As Integer)
Unload Me
End Sub
Private Sub members_Click(Index As Integer)
frmMember.Show
End Sub
The menu item allows multiple forms at the same time. If you want to allow only single form to load then hide other forms. See an example below.
Private Sub members_Click(Index As Integer)
frmMember.Show
frmBorrow.hide
frmBook.hide
End Sub
Note: You cannot add the code for Module 1 because first you have to add the components for Microsoft ADO Data Control 6.0 (OLEDB) and Microsoft Data grid Control 6.0 (OLEDB).
In this article, you will create an application in visual basic 6.0 with Microsoft access database as a back-end to manage customer transactions and bank employee details. This project is called bank management system in vb 6.0 using ms access.
The bank management system in vb 6.0 using ms access. must do the following tasks.
INSERT, DELETE, UPDATE records of Employees and Customers.
Keep track of customer transactions. A customer is allowed to withdraw and deposit money, not exceeding the balance in the account.
Bank employees only work for the branch with unique code.
Customer and Bank employee can log into there account with user id and password.
The system will be developed in following ways.
Develop System Design
Data Model [ E-R Diagram]
User Interface in VB 6.0
Code the different Modules
Verify the Output
SYSTEM MODEL
System Diagram -bank management system in vb 6.0 using ms access.
DATA MODEL
E-R Diagram
ER Diagram – System Diagram -bank management system in vb 6.0 using ms access.
Tables
Using the E-R Diagram we can create a relational model of the database. It means we can create tables with the database. To create a new database go to the Microsoft Access Database and create a new blank database. If you have MS Access 2007 or Higher save the database with (.mdb) extension. Otherwise, Visual Basic 6 may not recognize the database file.
Create three four tables within the database with appropriate data-types given in the following figures.
Branch Table – Bank Management SystemCustomer Table – Bank Management SystemTransaction Table – Bank Management SystemEmployee Table – Bank Management System
MODULES AND FORMS
The modules used in this application are given below
frmBankManagement
frmLogin
frmMENU(MDI Form)
frmBranch
frmCustomer
frmEmployee
frmTransaction
Module1.bas
Components of frmBankManagement
FORM -bank management system in vb 6.0 using ms access.
Labels:
Name : lblBankManagement
Caption : Bank Management System
Buttons:
Name : cmdLogin
Caption : LOGIN
Code for frmBankMangement
Private Sub cmdLogin_Click()
Unload Me
frmLogin.Show
End Sub
Components of frmLogin
Form Login – Bank Management System
Labels
Name : lblUserID
Caption : UserID
Name : lblPassword
Caption : Password
Text-boxes
Name : txtUserID
Text : 'leave blank'
Name : txtPassword
Text : Password
Buttons
Name : cmdLogin
Caption : Login
Name : cmdCancel
Caption : Cancel
Code for frmLogin
Option Explicit
Public LoginSucceeded As Boolean
Private Sub cmdCancel_Click()
'set the global var to false 'to denote a failed login
LoginSucceeded = False
Me.Hide
End Sub
Private Sub cmdLogin_Click()
rs.CursorLocation = adUseClient rec.CursorLocation
= adUseClient rec.Open "SELECT * FROM Employee", con,
adOpenDynamic, adLockPessimistic rs.Open
"SELECT * FROM Customer", con, adOpenDynamic, adLockOptimistic
'check the username
While Not rs.EOF
If txtUserID = rs!AccountNo And txtPassword = rs!Password Then
frmMENU.Show
LoginSucceeded = True
con.Close MsgBox ("Connection Closed")
Exit Sub
Unload Me
ElseIf
Val(txtUserID) = rec!EID And txtPassword
= rec!Password Then
frmMENU.Show LoginSucceeded = True
con.Close
MsgBox ("Connection Closed")
Exit Sub
Unload Me
ElseIf
Val(txtUserID) <> rs!AccountNo Then
rs.MoveNext ElseIf Val(txtUserID) <>
rec!EID Then rec.MoveNext
Else
MsgBox "Invalid Password, try again!", ,
"Login" txtPassword.SetFocus
SendKeys "{Home}+{End}"
Exit Sub
End If
Wend
rs.Close
rec.Close
End Sub
Private Sub Form_Load()
Call loadcon
MsgBox ("Connected")
End Sub
Components for frmBranch
Form Bank Branch – Bank Management Sys
Labels
Name : lblBID
Caption : BRANCH ID
Name : lblBcode
Caption :BRANCH CODE
Name : lblLocation
Caption : LOCATION
Name : lblTotEmp
Caption : TOTAL EMPLOYEE
Text-boxes
Name: txtBID
Text : 'leave blank'
Name : txtBcode
Text : 'leave blank'
Name : txtLocation
Text : 'leave blank'
Name : txtTotEmp
Text : 'leave blank'
Buttons
Name : cmdAdd
Caption : &ADD
Name : cmdDel
Caption : &DELETE
Name : cmdUpdate
Caption: &UPDATE
Name : cmdDisplay
Caption : &DISPLAY
Name : cmdClr
Caption : &CLEAR
Name : cmdExit
Caption : &EXIT
DataGrids
Name : DataGrid1
Code for frmBranch
Private Sub cmdAdd_Click()
Dim total As Double
rs.Open "SELECT Count(EID) FROM Employee",
con, adOpenDynamic, adLockPessimistic
total = rs.Fields(0).Value
con.Execute "INSERT INTO
Branch(BID, Bcode, Location , TotalEmployees )
VALUES (" & txtBID & ",'" & txtBcode &
"','" & txtLocation & "', " & total & ")"
MsgBox ("Record Added")
End Sub
Private Sub cmdClr_Click()
txtBID = " "
txtBcode = " "
txtLocation = " "
txtTotEmp = " "
End Sub
Private Sub cmdDel_Click()
con.Execute "DELETE * FROM Branch
WHERE BID = " & txtBID & ""
MsgBox ("Record Deleted")
End Sub
Private Sub cmdDisplay_Click()
rs.CursorLocation = adUseClient
rs.Open "SELECT * FROM Branch",
con, adOpenDynamic, adLockPessimistic
Set DataGrid1.DataSource = rs
End Sub
Private Sub cmdExit_Click()
Unload Me
con.Close
End Sub
Private Sub cmdUpdate_Click()
Dim total As Double
rs.Open "SELECT Count(EID) FROM
Employee WHERE BID = " &
txtBID & " ", con,
adOpenDynamic, adLockPessimistic
total = rs.Fields(0).Value
con.Execute "UPDATE Branch SET Bcode
= '" & txtBcode & "',Location
= '" & txtLocation & " ',
TotalEmployees = " & total & "
WHERE BID = " & txtBID & " "
MsgBox ("Record Updated ")
End Sub
Private Sub Form_Load()
Call loadcon
End Sub
Components of frmCustomer
Form Customer Details – Bank Management System
Labels
Name :lblAno
Caption : ACCOUNT NO
Name :lblAname
Caption : ACCOUNT NAME
Name : lblAddress
Caption : BALANCE
Name : lblBrankID
Caption : BRANCH ID
Text-Boxes
Name : txtAno
Text : 'leave blank'
Name : txtAname
Text ; 'leave blank'
Name : txtAddress
Text : 'leave blank'
Name : txtBalance
Text : 'leave blank'
Name : txtBID
Text : 'leave blank'
Name : cmdAdd
Caption : &ADD
Name : cmdDel
Caption : &DELETE
Name : cmdClr
Caption : &CLEAR
Name : cmdExit
Caption : &EXIT
Name : cmdUPDATE
Caption : &UPDATE
Name : cmdDisplay
Caption : &DISPLAY
Code for frmCustomer
Private Sub cmdAdd_Click()
con.Execute "INSERT INTO Customer (
AccountNo, AccountName, Address, Balance, BID )
VALUES(" & txtAno & ",' " & txtAname &
" ',' " & txtAddress & " '," &
txtBalance & ", " & txtBID & ")"
txtAno = "" txtAname = "" txtAddress = ""
txtBalance = "" txtBID = ""
MsgBox ("Record Added")
End Sub
Private Sub cmdClr_Click()
txtAno = ""
txtAname = ""
txtAddress = ""
txtBalance = ""
txtBID = ""
End Sub
Private Sub cmdDel_Click()
con.Execute "DELETE * FROM Customer
WHERE AccountNo = " & txtAno & ""
MsgBox ("Record Deleted")
End Sub
Private Sub cmdDisplay_Click()
rs.Open "SELECT * FROM Customer",
con, adOpenDynamic, adLockPessimistic
Set DataGrid1.DataSource = rs
End Sub
Private Sub cmdExit_Click()
Unload Me
con.Close
End Sub
Private Sub cmdUpdate_Click()
con.Execute "UPDATE Customer
SET AccountName = '" & txtAname & " ',
Address = ' " & txtAddress & " ',
Balance = " & txtBalance & "
WHERE AccountNo = " & txtAno & "" txtAno = ""
MsgBox ("Record Updated!")
End Sub
Private Sub Form_Load()
Call loadcon
MsgBox ("connected")
End Sub
Components of frmEmployees
Form Employee Details – Bank Management System
Labels
Name : lblEID
Caption : EID
Name : lblEname
Caption : EMPLOYEE NAME
Name : lblDesig
Caption : DESIGNATION
Name : lblSalary
Caption : SALARY
Name : lblWeekoff
Caption :WEEKOFF
Name : lblBranchID
Caption : BRANCH ID
Text-boxes
Name : txtEID
Text : 'leave blank'
Name : txtEname
Text : 'leave blank'
Name : txtDesig
Text ; 'leave blank'
Name ; txtSalary
Text : 'leave blank'
Name : txtWeekoff
Text : 'leave blank'
Name : txtBID
Text : 'leave blank'
Buttons
Name : cmdAdd
Caption : &ADD
Name : cmdDel
Caption : &DELETE
Name : cmdUpdate
Caption : &UPDATE
Name : cmdDisplay
Caption : &DISPLAY
Name : cmdClr
Caption : &CLEAR
Name : cmdExit
Caption : &EXIT
DataGrid
Name : DataGrid 1
Code for frmEmployee
Private Sub cmdAdd_Click()
con.Execute "INSERT INTO
Employee (EID, Ename, Designation, Salary, Weekoff, BID)
VALUES (" & txtEID & ",'" &
txtEname & "','" &
txtDesig & "', " &
txtSalary & ", '" &
txtWeekoff & "', " &
txtBID & ")"
MsgBox ("Record Added")
txtEID = "" txtEname = "" txtDesig
= "" txtSalary = "" txtWeekoff = "" txtBID = ""
End Sub
Private Sub cmdClr_Click()
txtEID = ""
txtEname = ""
txtDesig = ""
txtSalary = ""
txtWeekoff = ""
txtBID = ""
End Sub
Private Sub cmdDel_Click()
con.Execute "DELETE * FROM
Employee WHERE EID = " &
txtEID & ""
MsgBox ("Record Deleted ")
txtEID = ""
End Sub
Private Sub cmdDisplay_Click()
rs.Open "SELECT * FROM Employee",
con, adOpenDynamic, adLockPessimistic
Set DataGrid1.DataSource = rs
End Sub
Private Sub cmdExit_Click()
Unload Me
con.Close
End Sub
Private Sub cmdUpdate_Click()
con.Execute "UPDATE Employee
SET Ename = '" &
txtEname & "',Designation = '" &
txtDesig & "',Salary = " &
txtSalary & ",Weekoff = ' " &
txtWeekoff & " ', BID = " &
txtBID & " WHERE EID = " &
txtBID & " "
MsgBox ("Record Updated")
End Sub
Private Sub Form_Load()
loadcon
End Sub
Components of frmTransaction
Form Transaction – Bank Management System
Labels
Name : lblTID
Caption : TRANSACTION ID
Name : lblBID
Caption : BRANCH ID
Name :lblAno
Caption : ACCOUNT NO
Name : lblWDraw
Caption : WITHDRAW
Name : lblDEPOSIT
Caption : lblDeposit
Name : lblDate
Caption : DATE
Text-boxes
Name : txtTID
Text : 'leave blank'
Name : txtBID
Text : 'leave blank'
Name : txtAno
Text : 'leave blank'
Name : txtWDraw
Text : 'leave blank'
Name : txtDeposit
Text : 'leave blank'
Name : txtDate
Text : 'leave blank'
Buttons
Name : cmdAdd
Caption : &ADD
Name : cmdDel
Caption : &DELETE
Name : cmdUpdate
Caption : &UPDATE
Name : cmdDisplay
Caption : &DISPLAY
Name : cmdClr
Caption : &CLEAR
Name : cmdExit
Caption : &EXIT
Data Grids
Name : Data Grid 1
Code for frmTransaction
Private Sub cmdAdd_Click()
con.Execute "INSERT INTO
Trans(TID, BID, AccountNo, Withdraw, Deposit, TransactionDate )
VALUES (" & txtTID & "," &
txtBID & ", " &
txtAno & "," &
txtWDraw & ", " &
txtDeposit & ", ' " &
txtDate & "' )"
txtTID = "" txtBID = "" txtAno
= "" txtWDraw = "" txtDeposit
= "" txtDate = ""
MsgBox ("Record Added")
End Sub
Private Sub cmdClr_Click()
txtTID = ""
txtBID = ""
txtAno = ""
txtWDraw = ""
txtDeposit = ""
txtDate = ""
End Sub
Private Sub cmdDel_Click()
con.Execute "DELETE * FROM
Trans WHERE TID = " &
txtTID & ""
MsgBox ("Record Deleted")
End Sub
Private Sub cmdDisplay_Click()
rs.Open "SELECT * FROM Trans ", con,
adOpenDynamic, adLockPessimistic
Set DataGrid1.DataSource = rs
End Sub
Private Sub cmdExit_Click()
Unload Me
con.Close
End Sub
Private Sub cmdUpdate_Click()
con.Execute "UPDATE Trans SET
BID = " & txtBID & " ,
AccountNo = " & txtAno & " ,
Withdraw = " & txtWDraw & ",
Deposit = " & txtDeposit & "
WHERE TID = " & txtTID & ""
txtTID = "" txtBID = "" txtAno
= "" txtWDraw = "" txtDeposit = "" txtDate = ""
MsgBox ("Record Updated")
End Sub
Private Sub Form_Load()
Call loadcon
MsgBox ("connected")
End Sub
frmMENU [ MDI Form ]
The MDI form is that form which has MENU and when you click on any one of the menu item, it opens up another MDI Child form.
We will set MDI Child property for following forms
frmBranch
frmCustomer
frmEmployee
frmTransaction
Go to the property of each form and set the MDI Child to ‘True’.
Set MDI Child to True
Under Project 1 , [Right Click] the Forms > [Click] Add > [Click] MDI Form.
Create MDI Form
Configure Menu using the Menu Editor in MDI Form and write appropriate code for the form.
Form Menu – Bank Management System
Code for frmMENU
Private Sub branch_Click(Index As Integer)
frmBranch.Show
End Sub
Private Sub customer_Click(Index As Integer)
frmCustomer.Show
End Sub
Private Sub employee_Click(Index As Integer)
frmEmployee.Show
End Sub
Private Sub exit_Click(Index As Integer)
Unload Me
Unload frmBankManagement
Unload frmLogin
Unload frmCustomer
Unload frmEmployee
End Sub
Private Sub transaction_Click(Index As Integer)
frmTransaction.Show
End Sub
Code for Module1.Bas
Most of the forms in the application need to connect to the database, so you may have to write code for connectivity with Microsoft Access Database repeatedly in each form.
Instead of writing the code for connectivity in each form, we write it once in a Module and call the function from the form. In this way, we save time to write the same code many times.
Here is the code for Module1.bas
Note; To know more about creating a new Module go to one of the previous Visual Basic 6 posts.
Public con As ADODB.Connection
Public rs As ADODB.Recordset
Public constr As String
Public Sub loadcon() constr = "Provider=Microsoft.Jet.OLEDB.4.0;
Data Source=C:UsersGirishDocumentsStudentDB.mdb;Persist Security Info=False"
con.Open constr
End Sub

In this article, we will learn to create an application in Visual Basic 6.0 for Employee Record Management in an organization.
The application does following tasks
Insert, Delete, Update employee records.
Compute the Gross Pay and Net Pay of each employee.
Maintain records of departments for each employee.
Each employee should be able to login to the system with own password.
The development of the application – Employees Record Management is done in following ways.
Develop System Model.
Define the Data Model (E-R Diagram)
Design the User Interface in VB 6.
Rename the components.
Write codes for components.
Test and verify Output.
System Model
System Model – Employee Record Management
E-R Diagram for Employee Record Management
E-R Diagram – Employee Record Management
Working with MS Access Database
Based on the E-R Model you can create a New Access Database and save it as the emp.mdb file. To create a blank database
Open Microsoft Office Access 2007 ( Check MS office documentation for other versions) > Click “Blank Database”.
Click Blank Database
Create three table for the emp.mdb database.
Dependent Table Schema
Dependent Table in Design View
Employee Table Schema
Employee Table in Design View
Login Table in Design View
Login Table in Design View
Note: Each Table should have at least one field as Primary Key.
Relationship between Tables
Relationship Between Tables
Accessing Access Database from Visual Basic 6
You can use a common module from visual basic to connect to the access database. Functions from this module will be called from all Forms in the visual basic project, so that we do not need to rewrite the same code for database connectivity.
Add the ADODB components in the VB Toolbox.
Add ADOBD component
Add an Adodb component, [Right Click] on the Control Object > Click Properties.
ADODB Component
Under the Adodc properties windows > Click Build.
ADODC Properties
Select the Provider
Under the Connection tab > Select the Database you created previously.
Select the Database
Now Click “Test Connection” to check if the database connection is successful. Click on the “Provider” tab again and we now have our connection string.
Connection String
This new Connection String will be used in Module.Bas file for accessing the database at run-time. The existing ADODC control is no longer required and you can delete it.
Creating Module1 for Database Connectivity
To create a new database connection at run-time, do the following. Under Project.vbp windows > Project1 [Right-Click] > Add [Select] > Module [Click].
A new module will open as shown in the following figure.
Create a New Module
Type the following code in the Module Code Editor.
Public con As New adodb.Connection
Public rs As New adodb.Recordset
Public constr As String
Public Sub loadcon()
constr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Users\Peter\Documents\emp.mdb;Persist Security Info=False"
con.Open constr
MsgBox ("connected")
End Sub
FORM EMPLOYEE DETAILS MANAGEMENT
Labels
Name: lblEMPMANAGE
Caption: EMPLOYEE RECORD MANAGEMENT
Buttons
Name: cmdLogin
Caption: Login
Code for frmEMPMANAGE
Private Sub cmdLogin_Click()
Unload Me
frmLogin.Show
End Sub
Components of frmLogin
Form Login
Labels
Name: lblUserID
Caption:UserID
Name: lblPassword
Caption: Password
Textboxes
Name: txtUserID
Text: 'leave blank'
Name: txtPassword
Text; 'leave blank'
Buttons
Name; vbOK
Caption: Login
Name: vbCancel
Caption: Cancel
Code for frmLogin
Option Explicit
Public LoginSucceeded As Boolean
Private Sub cmdCancel_Click()
'set the global var to false
'to denote a failed login
LoginSucceeded = False
Me.Hide
End Sub
Private Sub cmdOK_Click()
With
rs .Open "SELECT * FROM LOGIN", con, adOpenDynamic, adLockOptimistic
'check the username
.MoveFirst While Not .EOF
If txtUserID = !UserID And txtPassword = !Password Then
frmMenu.Show
LoginSucceeded = True
con.Close
MsgBox ("Connection Closed")
Exit Sub
Unload Me
ElseIf
txtUserID <> !UserID Then
.MoveNext
Else
MsgBox "Invalid Password, try again!", , "Login"
txtPassword.SetFocus SendKeys "{Home}+{End}"
Exit Sub
End If
Wend
.Close
End With
End Sub
Private Sub Form_Load()
Call loadcon
Unload frmEMPMANAGE
End Sub
Components for frmEmpDetails
Form Employee Details
Labels
Name: lblEmpID
Caption: EMPID
Name: lblFirstname
Caption: FirstName
Name: lblLastname
Caption: LastName
Name: lblHRA
Caption: HRA
TextBoxes
Name: txtEmpID
Text: 'leave blank'
Name: txtFirstname
Text: 'leave blank'
Name: txtLastname
Text: 'leave blank'
Name: txtHRA
Text: 'leave blank'
Name: txtDA
Text: 'leave blank'
Name: txtBasic
Text: 'leave blank'
Buttons
Name: cmdAdd
Caption: &ADD
Name: cmdDel
Caption: &DELETE
Name: cmdUpdate
Caption: &Update
Name: cmdClr
Caption: &Clear
Name: cmdExit
Caption: &Exit
Name: cmdFirstname
Caption: &FirstName
Name: cmdLastname
Capttion: &LastName
Name: cmdNext
Caption: Next Record
Name: cmdPrev
Caption: Previous Record
Code for frmEmpDetails
Private Sub cmdAdd_Click()
con.Execute "INSERT INTO emp(EmpID,FirstName,
LastName,Basic, HRA, DA)
VALUES (" & txtEmpID & ",'" &
txtFirstname & "','" &
txtLastname & "'," &
txtBasic & "," &
txtHRA & "," &
txtDA & " );"
MsgBox ("Record Inserted")
End Sub
Private Sub cmdCLR_Click()
txtEmpID = ""
txtFirstname = ""
txtLastname = ""
txtBasic = ""
txtHRA = ""
txtDA = ""
End Sub
Private Sub cmdDel_Click()
con.Execute "DELETE * FROM emp
WHERE EmpID = " &
txtEmpID & ""
MsgBox ("Record Deleted")
txtEmpID = ""
End Sub
Private Sub cmdExit_Click()
Unload Me
con.Close
End Sub
Private Sub cmdUpdate_Click()
con.Execute "UPDATE emp SET FirstName = '" &
txtFirstname & "', LastName = ' " &
txtLastname & " ' , Basic = " &
txtBasic & " , HRA = " &
txtHRA & " , DA = " &
txtDA & " WHERE EmpID = " &
txtEmpID.Text & ""
End Sub
Private Sub Form_Load()
Call loadcon
End Sub
Component for frmSalary
Form Salary – Employee Record Management
Labels
Name: lblCalculateS
Option: CALCULATE SALARY
Name: lblEmpID
Caption: ENTER EMPLOYEE ID
Name: lblGrossP
Caption: GROSS PAY
Name: lblNetP
Caption: NET PAY
Textboxes
Name: txtEmpID
Text: 'leave blank'
Name: txtGross
Text: 'leave blank'
Name: txtNet
Text: 'leave blank'
Buttons
Name : cmdGross
Caption: GROSS PAY
Name: cmdNet
Caption: NET PAY
Name: cmdExit
Caption: EXIT
Code for frmSalary
Private Sub cmdExit_Click()
Unload Me
con.Close
End Sub
Private Sub cmdGross_Click()
Dim gross As Double
Dim net As Double
Dim tax As Double
With
rs rs.Open "SELECT * FROM emp WHERE EmpID = " &
txtEmpID & "", con, adOpenDynamic, adLockPessimistic
gross = !Basic + !HRA + !DA
End With
txtGross.Text = gross
con.Execute "UPDATE emp SET GrossPay = ' " &
gross & " ' WHERE EmpID = " &
txtEmpID & ""
rs.Close
End Sub
Private Sub cmdNet_Click()
Dim gross As Double
Dim net As Double
Dim tax As Double
With rs
rs.Open "SELECT * FROM emp
WHERE EmpID = " &
txtEmpID & "",
con, adOpenDynamic, adLockPessimistic
gross = !Basic + !HRA + !DA
tax = gross * 10 / 100
net = gross - tax
End With
rs.Close
txtNet.Text = net
con.Execute "UPDATE emp
SET NetPay = ' " & net & " '
WHERE EmpID = " & txtEmpID & ""
End Sub
Private Sub Form_Load()
Call loadcon
End Sub
Components for frmDependent
Form Dependent – Employee Record Management System
Labels
Name: lblDID
Caption: Department ID
Name: lblDname
Caption: Department Name
Name: lblRelation
Caption: Relation
Name: lblDependent
Caption: Employee Dependent
Textboxes
Name: txtDID
Text: 'leave blank'
Name: txtDname
Text: 'leave blank'
Name: txtRel
Text: 'leave blank'
Name: txtEmpID
Text: 'leave blank'
Buttons
Name: cmdAdd
Caption: &ADD
Name: cmdDel
Caption: &DELETE
Name: cmdUpdate
Caption: &UPDATE
Name: cmdClr
Caption: &CLEAR
Caption: &EXIT
Name: cmdExit
Code for frmDependent
Private Sub cmdAdd_Click()
con.Execute "INSERT INTO
Dependent(DependentID, DependentName,Relation,EmpID )
VALUES (" & txtDID & ", '" &
txtDName & "','" &
txtRel & "'," &
txtEmpID & ");"
txtDID.Text = ""
txtDName.Text = ""
txtRel.Text = ""
txtEmpID = ""
con.Execute "DELETE * FROM Dependent
WHERE DependentID = " & txtDID & ""
End Sub
Private Sub cmdClr_Click()
txtDID.Text = ""
txtDName.Text = ""
txtRel.Text = ""
txtEmpID = ""
End Sub
Private Sub cmdExit_Click()
Unload Me
End Sub
Private Sub cmdUpdate_Click()
con.Execute "UPDATE Dependent
SET DependentName = ' " &
txtDName & " ' , Relation = ' " &
txtRel & " ' WHERE DependentID = " &
txtDID & " "
MsgBox ("Record Updated")
End Sub
Private Sub Form_Load()
Call loadcon
End Sub
frmMenu [MDI Form]
MDI Form are Multiple-Document Interface in which you can open multiple forms. All our previously created will be child form of MDI.
This form is called frmMENU.
This form has menu editor to add different menu items and each menu item is linked to one of the forms created earlier. Before we get started with MDI form, you must set the MDI Child property of following Forms to ‘True’.
frmEmpDetails
frmSalary
frmDependent
Create a New MDI Form
To create a new MDI From, go to Project1.vbp > [Right Click] and then [Select ] Add > [Click] MDI Form.
Right Click the form and you will see the Menu Editor, using the editor create following menu items.
Caption : Employee Details
Name : employee
Index : 0
Caption : Salary Calculation
Name : salary
Index : 1
Caption : Dependents
Name : dependents
Index : 2
Caption : Exit
Name : exit
Index : 3
Code for frmMENU
The code for frmMENU is simple, you click on one of the menu item and a new form opens up, however the new form does not open in a separate windows, but it will open within frmMENU as MDI Child form.
Private Sub depend_Click(Index As Integer)
frmDependent.Show
End Sub
Private Sub empdetails_Click(Index As Integer)
frmEmpDetails.Show
End Sub
Private Sub exit_Click(Index As Integer)
Unload Me
Unload frmLogin
End Sub
Private Sub salary_Click(Index As Integer)
frmSalary.Show
End Sub
In this example, we are going to create a payroll processing system in VB 6 with Ms Access as the database. To complete this project, you need a computer with windows operating system XP or higher installed, Visual Basic 6.0 software, and Microsoft Access program anything higher than Ms Access 2003 or higher.
For the sake of this example, we are using VB 6.0 software and windows 7 64-bit system with Ms Access 2013 installed.
Payroll Processing System
The payroll processing system allow use to do following things with the employee information.
Add Employee Record
Modify Employee Record
Delete the Employee Record
The main purpose of the payroll processing system is to calculate the salary of each employee.
Steps To Design And Implement This Project
To design and implement this project, we will follow a simple process listed below.
Create a Database with tables for Employee and Salary
Design the form for Employee records
Write codes for the Employee form
Design the form for Salary records
Write codes for Salary form.
Connect the database with the form
Test each functionality and correct any errors.
Create The Database
The very first step is to create a database in Microsoft Access and add two tables. Open Ms Access 2013 and click ‘ Create a blank database’ and type the name of the database as ‘ EmpDB.mdb’. Save it to you drive in a folder called ‘AccessDB’.
At this moment the database is empty and it has nothing. Our task is to create two tables in the database. When you switch to Design view in Ms Access, you will asked to name your table, you can call it – Employee and click OK.
Figure 1 – Employee table in Design view
You table must have fields and corresponding data types. See the image below.
Figure 2 – Salary table in Design view
Once you have created tables, then you must create a relationship between these two tables. The employee number is the unique in both table. Each employee can have one salary account. Therefore, we must have a one-to-one relationship between employee table and the salary table.
Before you create the relationship close the tables, then go to database tools in Ms Access and click Relationships. The next step is to add both employee table and salary table in the relationship window.
Figure 3 -Create a One-To-One Relationship between Employee and Salary Table
Figure 4 – Enforce Referential Integrity
You must click on the relationship link and edit the relationship. Select ‘Enforce Referential Integrity’ and also select ‘Cascade Update Related Fields’ and ‘Cascade Delete Related Record’. These two properties will make sure that if you delete any record from one table, that will also remove it from the other.
Now you can add some records to both the table. It is good to add at least 5 records in both table. Leave the Net field empty in Salary table because we need to calculate it and update it from our VB 6 program.
Figure 5 – An Instance of Employee Relation
Figure 6 – Instance Of Salary Relation
Note that the net salary is not calculated yet and salary is linked to a single employee.
Form Design For Employee Relation
In this section we will design a form in VB 6 for employee relation so that we could add, update, and delete records from the database. There will also be link to main program or to exit from the employee form.
Figure 7 – Employee Details Form of Payroll Processing System
Name: cmdAdd
Caption: &ADD
Font: Ms Sans Serif, 12, Regular
Name: cmdModify
Caption: &MODIFY
Font: Ms Sans Serif, 12, Regular
Name: cmdDelete
Caption: &DELETE
Font: Ms Sans Serif, 12, Regular
Name: cmdClear
Caption: &CLEAR
Font: Ms Sans Serif, 12, Regular
Name: cmdMain
Caption: &MAIN
Font: Ms Sans Serif, 12, Regular
Name: cmdExit
Caption: &EXIT
Font: Ms Sans Serif, 12, Regular
Code For Employee Form Of Payroll Processing System
Option Explicit
Private Sub cmdAdd_Click()
con.Execute "INSERT INTO Employee (Eno, Ename,Age,Address, Dob, Phone) VALUES ('" & txtEno & "','" & txtEname & "','" & txtAge & "','" & txtAddress & "','" & txtDob & "', '" & txtPhone & "')"
MsgBox "Record Added"
End Sub
Private Sub cmdClear_Click()
txtEno.Text = " "
txtEname.Text = " "
txtAge.Text = " "
txtAddress.Text = " "
txtDob.Text = " "
txtPhone.Text = " "
End Sub
Private Sub cmdDelete_Click()
con.Execute "DELETE * FROM Employee WHERE Eno = " & txtEno & ""
MsgBox ("Record Deleted")
txtEno = ""
End Sub
Private Sub cmdExit_Click()
Unload Me
con.Close
End Sub
Private Sub cmdMain_Click()
frmPayrollProcessing.Show
con.Close
End Sub
Private Sub cmdModify_Click()
con.Execute "UPDATE Employee SET Eno = '" & txtEno & "', Ename = ' " & txtEname & " ', Age = '" & txtAge & " ', Address = '" & txtAddress & "', Dob ='" & txtDob & "', Phone = '" & txtPhone & "' WHERE Eno = ' " & txtEno & " '"
MsgBox "Record Updated"
End Sub
Private Sub Form_Load()
Call loadcon
MsgBox ("Connected")
End Sub
Form Design For Salary Relation
In this section, we will create a form to add salary account for existing employees, calculate their net salaries. The form will also print the net salary of an employee in a text file.
Figure 8 – Salary Form Of Payroll Processing System
Name: cmdAdd
Caption: &ADD
Font: MS Sans Serif, 12, Regular
Height: 735
Width: 1935
Name: cmdUpdate
Caption: &UPDATE
Font: MS Sans Serif, 12, Regular
Height: 735
Width: 1935
Name: cmdCalculate
Caption: &CALCULATE
Font: MS Sans Serif, 12, Regular
Height: 735
Width: 1935
Name: cmdPrint
Caption: &PRINT
Font: MS Sans Serif, 12, Regular
Height: 735
Width: 1935
Name: cmdExit
Caption: &EXIT
Font: MS Sans Serif, 12, Regular
Height: 735
Width: 1935
Code For Salary Form Of Payroll Processing System
Private Sub cmdAdd_Click()
con.Execute "INSERT INTO Salary (Eno, Designation, Basic, Da, Hra, Pf,Net) VALUES ('" & txtSalEno & "','" & txtSalDesig & "','" & txtSalBasic & "','" & txtSalDa & "','" & txtSalHra & "', '" & txtSalPf & "','" & txtSalNet & "')"
MsgBox "Record Added"
End Sub
Private Sub cmdCalculate_Click()
Dim Basic As Double
Dim Da As Double
Dim Hra As Double
Dim Pf As Double
Dim Net As Double
Basic = Val(txtSalBasic.Text)
Hra = Basic * 0.2
Da = Basic * 0.1
Pf = Basic * 0.1
Net = Basic + Da + Hra + Pf
txtSalHra.Text = Str(Hra)
txtSalDa.Text = Str(Da)
txtSalPf.Text = Str(Pf)
txtSalNet.Text = Str(Net)
End Sub
Private Sub cmdExit_Click()
Unload Me
con.Close
End Sub
Private Sub cmdPrint_Click()
Dim sFileText As String
Dim iFileNo As Integer
iFileNo = FreeFile
'open the file for writing
Open "C:\AccessDB\Test.txt" For Output As #iFileNo
'please note, if this file already exists it will be overwritten!
'write some example text to the file
Print #iFileNo, "Employee No:"; txtSalEno.Text
Print #iFileNo, "Employee Designation: "; txtSalDesig.Text
Print #iFileNo, "Basic:"; txtSalBasic.Text; ""
Print #iFileNo, "Net Salary:"; txtSalNet.Text
MsgBox " Printing Done!!"
'close the file (if you dont do this, you wont be able to open it again!)
Close #iFileNo
End Sub
Private Sub cmdUpdate_Click()
con.Execute "UPDATE Salary SET Basic = '" & txtSalBasic & "' , Da = '" & txtSalDa & "', Hra = '" & txtSalHra & "', Pf = '" & txtSalPf & "', Net = '" & txtSalNet & " ' WHERE Eno = '" & txtSalEno & " ' "
MsgBox ("Updated")
End Sub
Private Sub Form_Load()
Call loadcon
MsgBox "Connected!"
End Sub
Create A Main Form For The Payroll Processing Project
Since we have two separate forms and we want to be able to go to any form. In this section, we will create a new main form. Here is the design of the main form in VB 6.
Figure 9 – Main Form of Payroll Processing System
Form
Name: frmPayrollProcessing
Caption: Payroll Processing System
BackColor: &H00404000&
ForeColor: Highlight Text
Height: 5475
Width: 8940
Labels
Name: lblMainBanner
Caption: Payroll Processing System
BackColor: &H00404000&
ForeColor: Highlight Text
Buttons
Name: cmdMainEmp
Caption: &EMPLOYEE
Font: Ms Sans Serif, 12, Regular
Height: 1182
Width: 2205
Name: cmdMainSalary
Caption: &SALARY
Font: Ms Sans Serif, 12, Regular
Height: 1182
Width: 2205
Name: cmdMainExit
Caption: &EXIT
Font: Ms Sans Serif, 12, Regular
Height: 1182
Width: 2205
Make sure that you start your project with the main form. Therefore, go to Project tab on the top and click on Project1 Properties. Select ‘frmPayrollProcessing‘ under Startup Object.
Code For Main Form
Private Sub cmdMainEmp_Click()
frmEmp.Show
End Sub
Private Sub cmdMainExit_Click()
Unload Me
End Sub
Private Sub cmdMainSalary_Click()
frmSalary.Show
End Sub
Create A Module To Establish Connection With Database
The final step in this project is to create a module that help you establish a connection with the Ms Access database. This step is very important for your project success.
To create a new module, go to Project Explorer and right-click on Forms > select Add > click Module.
Figure 10 – Create A New Module from Project Explorer
The module code window will open up immediately. Insert the following code and recheck.
Public con As New ADODB.Connection
Public rs As New ADODB.Recordset
Public constr As String
Public Sub loadcon()
constr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\AccessDB\EmpDB.mdb;Persist Security Info=False"
con.Open constr
End Sub
Testing The Project
There are two phase to testing the project – payroll processing.
You always starts with Employee table and create employee records
If you want to compute the salary of an employee , Enter the employee no, designation, and basic and click on the Calculate button. The program will automatically compute the net salary.
The third step is to print the output to a text file. Each time you click on the print button it will over write the file located in C:/Test.txt. If there is not file with that name , the program will create it when you click on the print button.
Figure 11 – Test 1 – Database is Connected
Figure 12 – Test 2 – Employee Record Added
Figure 13 – Test 3 – Only enter Employee no, Designation, and Basic salary and click Calculate
The net salary and other details are automatically processed.
Figure 14 – Test 4 -Net Salary and Other Details Processed
This record is new for Salary table; therefore, it is not updated but added to the salary table. You can click the Add button to add the record in Salary table.
Figure 15 – Test 5 – Record Added to Salary Table
There is a print button which will print the information in a text file. Press that PRINT button and check the output text file located in AccessDB folder where you keep your database files.
Figure 16 – Test 6 – Print Output to Text File
Open the text file – Test.txt and you should see an entry for your latest database entry.
There are other functionalities like Update, Modify, etc which you can test on your own.
Student Attendance Management System Using MS Access and VB 6 Part 4 – In this article, we will continue to build the interface for attendance management system that will meet the user requirements.
You will build the following interfaces.
View Attendance (frmViewAttendance)
Today’s Attendance (frmTodayAttendance)
Student Record Management (frmStudent)
Teacher Record Management (frmTeacherRecord)
Let us get started.
View Attendance
The view attendance interface allows students, teachers, and admin to view attendance between specific dates, count the hours present, and display if they have the eligibility to attend the exams.
The total number of hours of class for a student is 300 hours. If the student is able to get at least 150 hour present then he or she is eligible to attend the exam. The program display how many hour to complete to qualify and number of hours present in the class.
System Diagram For View Attendance
The view attendance interface requires three input values – name, start date, and end date of attendance taken. It display current total when a student was present and deficit- remaining hours to be eligible for exam. Finally, the eligibility of a student to appear in the exam as mentioned earlier.
System Diagram for View Attendance
Form Design(frmViewAttendance)
The next step is to create a form called frmViewAttendance that matches with the above system diagram. You can create a form design given below. It is not necessary that your form should exactly like the following figure. You may try a different design as well.
Figure1-Form Design View Attendance
Components for View Attendance
The components for view attendance interface are listed below.
Form Details
Name : frmViewAttendance
Caption : View Attendance
BackColor: Windows Text
Labels
Name: lblHead
Alignment : 2-Center
Caption: View Attendance
BackColor: Windows Text
ForeColor: Highlight Text
Font : Arimo 18px Bold
Name: lblName
Alignment : 0-Left Justify
Caption: Name
BackColor: Windows Text
ForeColor: Highlight Text
Name: lblStartDate
Alignment : 0-Left Justify
Caption: Start Date
BackColor: Windows Text
ForeColor: Highlight Text
Name: lblEndDate
Alignment : 0-Left Justify
Caption: End Date
BackColor: Windows Text
ForeColor: Highlight Text
Name: lblDeficit
Alignment : 0-Left Justify
Caption: Deficit
BackColor: Windows Text
ForeColor: Highlight Text
Name: lblCurrentTotal
Alignment : 0-Left Justify
Caption: Current Total
BackColor: Windows Text
ForeColor: Highlight Text
Name: lblEligible
Alignment : 0-Left Justify
Caption: Is the student eligible for exam ?
BackColor: Windows Text
ForeColor: Highlight Text
Dim rs1 As New ADODB.Recordset
Dim total As Integer
Dim deficit As Integer
Public Sub openrecords()
rs.CursorLocation = adUseClient
rs.CursorType = adOpenStatic
rs.Open "SELECT Student.[SID],Student.[Sname],Attendance.[Adate],Attendance.[APresent] FROM Attendance,Student WHERE Student.[Sid]= Attendance.[SID] And Student.[Sname] = '" & txtSname & "' And ( Attendance.[Adate] Between # " & Format(txtSdate.Text, "mm/dd/yyyy") & " # And # " & Format(txtEdate.Text, "mm/dd/yyyy") & " # )", con, adOpenDynamic, adLockPessimistic
rs1.Open "SELECT Count(APresent)FROM Attendance,Student WHERE Student.[Sid]= Attendance.[SID] And Student.[Sname] = '" & txtSname & "' And ( Attendance.[Adate] Between # " & Format(txtSdate.Text, "mm/dd/yyyy") & " # And # " & Format(txtEdate.Text, "mm/dd/yyyy") & " # )", con, adOpenDynamic, adLockPessimistic
End Sub
Private Sub cmdCLOSE_Click()
Unload frmMenu
Unload frmViewAttendance
Unload frmTodayAttendance
rs.Close
con.Close
'closing connection
End Sub
Private Sub cmdSearch_Click()
'making connection
Call loadcon
Call openrecords
Dim Present As String
Present = "YES"
total = 300
deficit = total - rs1.Fields(0).Value
txtCurrent.Text = rs1.Fields(0).Value
txtDeficit.Text = Str(deficit)
If deficit <= 150 Then
txtEligible.Text = "ELIGIBLE FOR EXAM"
txtEligible.ForeColor = vbGreen
Else
txtEligible.Text = "NOT ELIGIBLE"
txtEligible.ForeColor = vbRed
Set DGViewAttendance.DataSource = rs
End If
End Sub
Today’s Attendance
The today’s attendance is only visible to teachers. When the teacher log into the system, his or her students are listed automatically. The teacher can browse through the student data and mark attendance.
System Diagram for Today’s Attendance
Figure2-System Diagram for Today’s Att
There is not input required for today’s attendance other than the teacher must log into the system with their own id. Only those who log into the system will get their student list. One teacher cannot see students of other teachers.
Form Design (frmTodayattendance)
The next step is to design a form based on the system diagram. You may come up with your own design.
Figure3-Form Design Today Attendance
Components for Today Attendance
Here is the list of components used to build the today’s attendance interface.
Form Details
Name : frmTodayAttendance
Caption: Today's Attendance
BackColor: Windows Text
Labels
Name : lblTodayMain
Caption: Today's Attendance
BackColor: Windows Text
ForeColor : Highlight Text
Font : Arimo 18px Bold
Name : lblTSid
Caption: Student ID
BackColor: Windows Text
ForeColor : Highlight Text
Name : lblTSname
Caption: Student Name
BackColor: Windows Text
ForeColor : Highlight Text
Name : lblTodaySection
Caption: Section
BackColor: Windows Text
ForeColor : Highlight Text
Name : lblTodayClass
Caption: Class
BackColor: Windows Text
ForeColor : Highlight Text
Textboxes
Name : txtTSid
Text : 'none'
Name : txtTodaySname
Text : 'none'
Name : txtTodaySection
Text : 'none'
Name : txtTodayClass
Text : 'none'
Data-Grid Control
Name : DGToday
Frame Control
The frame control is for marking attendance and it has two option buttons. Once we create frame, right click on the frame and click-“send to back“. After which you can create option button on top of it.
Name : frameMarkAttendance
Caption: Mark Attendance
BackColor :Window Text
ForeColor : Highlight Text
Option Buttons
Name : OptionYes
Caption : YES
BackColor :Window Text
ForeColor :Highlight Text
Font : MS Sans-serif 8px Bold
Name : OptionNo
Caption : NO
BackColor :Window Text
ForeColor :Highlight Text
Font : MS Sans-serif 8px Bold
Option Explicit
Public contoday As New ADODB.Connection
Public rstoday As New ADODB.Recordset
Public sqltodaystr As String
Public Sub CreateConnection()
sqltodaystr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\VBProjects\Attendance\attendance.mdb;Persist Security Info=False"
contoday.Open sqltodaystr
End Sub
Public Sub OpenRecordset()
Dim tid As Integer
tid = frmSplash.userlogin
rstoday.CursorLocation = adUseClient
rstoday.CursorType = adOpenStatic
rstoday.Open "SELECT Teaches.[SID],Teaches.[TID],Student.[Sname],Student.[Section],Student.[Class] FROM Student,Teaches WHERE Teaches.[TID] = " & tid & " And Student.[Sid] = Teaches.[SID]", contoday, adOpenDynamic, adLockPessimistic
Set DGToday.DataSource = rstoday
rstoday.ActiveConnection = Nothing
End Sub
Private Sub cmdCLOSE_Click()
Unload Me
rstoday.Close
contoday.Close
End Sub
Private Sub cmdFirst_Click()
rstoday.MoveFirst
txtTSid.Text = rstoday.Fields("Sid").Value
txtTodaySname.Text = rstoday.Fields("Sname").Value
txtTodaySection.Text = rstoday.Fields("Section").Value
txtTodayClass.Text = rstoday.Fields("Class").Value
End Sub
Private Sub cmdLast_Click()
rstoday.MoveLast
txtTSid.Text = rstoday.Fields("Sid").Value
txtTodaySname.Text = rstoday.Fields("Sname").Value
txtTodaySection.Text = rstoday.Fields("Section").Value
txtTodayClass.Text = rstoday.Fields("Class").Value
End Sub
Private Sub cmdNext_Click()
rstoday.MoveNext
If rstoday.EOF = True Then
rstoday.MoveFirst
End If
txtTSid.Text = rstoday.Fields("Sid").Value
txtTodaySname.Text = rstoday.Fields("Sname").Value
txtTodaySection.Text = rstoday.Fields("Section").Value
txtTodayClass.Text = rstoday.Fields("Class").Value
End Sub
Private Sub cmdPrevious_Click()
rstoday.MovePrevious
If rstoday.BOF = True Then
rstoday.MoveLast
End If
txtTSid.Text = rstoday.Fields("Sid").Value
txtTodaySname.Text = rstoday.Fields("Sname").Value
txtTodaySection.Text = rstoday.Fields("Section").Value
txtTodayClass.Text = rstoday.Fields("Class").Value
End Sub
Private Sub Form_Load()
CreateConnection
OpenRecordset
End Sub
Private Sub OptionNo_Click()
Call loadcon
Dim Curr_date As Date
Dim Absent As String
Dim todaytid As Integer
todaytid = frmSplash.userlogin
Absent = "NO"
Curr_date = Format(Now, "mm/dd/yyyy")
con.Execute ("INSERT INTO Attendance VALUES(" & _
"#" & Curr_date & "#," & _
"" & txtTSid & "," & _
"" & todaytid & "," & _
"'" & Absent & "')")
MsgBox ("Record Added")
OptionYes.Value = False
OptionNo.Value = False
con.Close
End Sub
Private Sub OptionYes_Click()
Call loadcon
Dim Curr_date As Date
Dim Present As String
Dim todaytid As Integer
todaytid = frmSplash.userlogin
Present = "YES"
Curr_date = Format(Now, "mm/dd/yyyy")
con.Execute ("INSERT INTO Attendance VALUES(" & _
"#" & Curr_date & "#," & _
"" & txtTSid & "," & _
"" & todaytid & "," & _
"'" & Present & "')")
MsgBox ("Record Added")
OptionYes.Value = False
OptionNo.Value = False
con.Close
End Sub

Student Record Management
The student record management is the job of admin staff. The admin can add new students, update student records, and delete the student information from the database.
System Diagram for Student Record Management
The system diagram for student record management has two parts – inputs and tasks. The inputs for the system is student details, and once the input is received, the admin can perform one of the following tasks.
ADD
UPDATE
DELETE
CLEAR
CLOSE
Here is the system diagram.
Figure4-System Diagram for Student Record Management
Form Design (frmStudent)
The next step is to use the system diagram as a guide and design the following form.
Figure5-Form Design Student Management
In the next section, we will discuss each component of the form in detail.
Component for Student Record Management
Here are the components for student management form.
Form Details
Name : frmStudent
Caption : Student Record Management
BackColor : Window Text
Now we need a frame control to organize our other controls. First create a frame and then right click and select “Send to Back”. Start creating other controls such as labels, textboxes and button on top of it. If you do not want a frame skip this step and continue with rest of the controls.
Frame Control
Name : frameStudentRecord
Caption : Student Record Management
BackColor : Window Text
ForeColor : Highlight Text
Labels
Name : lblStudentMain
Caption : Student Record Management
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 18px Bold
Name : lblSSID
Caption : Student ID
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 8px Bold
Name : lblSTID
Caption : Teacher ID
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 8px Bold
Name : lblSSname
Caption : Student Name
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 8px Bold
Name : lblSection
Caption : Section
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 8px Bold
Name : lblClass
Caption : Class
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 8px Bold
Name : lblPassword
Caption : Password
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 8px Bold
Name : lblAID
Caption : Admin ID
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 8px Bold
Option Explicit
Private Sub cmdADD_Click()
Call loadcon
con.Execute ("INSERT INTO Student VALUES(" & txtSID & ",'" & txtSname & " ','" & txtSection & " ' ,'" & txtClass & " ' ,' " & txtSpass & " ', " & txtAID & " );")
con.Execute ("INSERT INTO Teaches VALUES (" & txtSID & "," & txtSTid & ");")
MsgBox ("Record Added")
con.Close
End Sub
Private Sub cmdCLEAR_Click()
txtSname = " "
txtSID = " "
txtSTid = " "
txtSection = " "
txtClass = " "
txtSpass = ""
txtAID = " "
End Sub
Private Sub cmdCLOSE_Click()
Unload frmStudent
Unload frmTeacherRecord
End Sub
Private Sub cmdDelete_Click()
Call loadcon
con.Execute "DELETE * FROM Attendance WHERE SID = " & txtSID & ""
con.Execute "DELETE * FROM Teaches WHERE SID = " & txtSID & ""
con.Execute "DELETE * FROM Student WHERE Sid = " & txtSID & ""
MsgBox ("Record Deleted!")
con.Close
End Sub
Private Sub cmdUPDATE_Click()
Call loadcon
con.Execute "UPDATE Student SET Student.[Sname] = '" & txtSname & "', Student.[Section] = '" & txtSection & "',Student.[Class], Student.[Password] = '" & txtSpass & "' WHERE SID = " & txtSID & "; "
MsgBox ("Record Updated ")
End Sub
Private Sub txtSID_GotFocus()
txtSTid.Enabled = False
txtAID.Enabled = False
End Sub
Private Sub txtSname_GotFocus()
txtSTid.Enabled = False
txtAID.Enabled = False
End Sub

Teacher Record Management
The teacher record management is similar to student management. To maintain the records of old and new teaching staff is the job of administrators.
System Diagram for Teacher Record Management
Figue6-System Diagram for Teacher Record Management
Form Design (frmTeacherRecord)
The next step is to design a form similar to given below.
Figure7-Form Design Teacher Record
In the section below, we will discuss the components used in the interface – Teacher Record Management.
Components for Teacher Record Management
Here is the list of components for above interface.
Form Details
Name : frmTeacherRecord
Caption : Teacher Record Management
BackColor : Window Text
Frame Control
You can organize the form using the frame control. First create the control and then right click and ‘Send-to-back’. After that you can simply add other controls on top of the frame.
Name : frameTeacher
Caption : Teacher Record Management
BackColor : Window Text
ForeColor : Highlight Text
Labels
Name : lblTeacherMain
Alignment : 2-Center
Caption : Teacher Record Management
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 18px Bold
Name : lblTID
Alignment : 0-Left Justify
Caption : Teacher ID
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 10px Bold
Name : lblTNAME
Alignment : 0-Left Justify
Caption : Teacher Name
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 10px Bold
Name : lblCOURSE
Alignment : 0-Left Justify
Caption : Course
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 10px Bold
Name : lblPASS
Alignment : 0-Left Justify
Caption : Password
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 10px Bold
Name : lblAID
Alignment : 0-Left Justify
Caption : Admin ID
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 10px Bold
Textboxes
Name :txtTID
Text : 'none'
Name :txtTNAME
Text : 'none'
Name :txtCOURSE
Text : 'none'
Name :txtTpass
Text : 'none'
Name :txtAID
Text : 'none'
Buttons
Name : cmdADD
Caption :&ADD
BackColor : Window Text
Style : 1-Graphical
Name : cmdUpdae
Caption :&UPDATE
BackColor : Window Text
Style : 1-Graphical
Name : cmdDELETE
Caption :&DELETE
BackColor : Window Text
Style : 1-Graphical
Name : cmdCLR
Caption :&CLEAR
BackColor : Window Text
Style : 1-Graphical
Name : cmdCLOSE
Caption :&CLOSE
BackColor : Window Text
Style : 1-Graphical
Code for Teacher Record Management
Private Sub cmdADD_Click()
Call loadcon
con.Execute ("INSERT INTO Teacher VALUES(" & txtTID & ",'" & txtTNAME & " ','" & txtCOURSE & " ' ,' " & txtTpass & " ', " & txtAID & " );")
MsgBox ("Record Added")
End Sub
Private Sub cmdCLOSE_Click()
Unload frmTeacherRecord
Unload frmStudent
End Sub
Private Sub cmdCLR_Click()
txtTID.Text = ""
txtTNAME.Text = ""
txtCOURSE.Text = ""
txtTpass.Text = ""
txtAID.Text = ""
End Sub
Private Sub cmdDelete_Click()
Call loadcon
con.Execute ("DELETE * FROM Attendance WHERE TID = " & txtTID & " ")
con.Execute ("DELETE * FROM Teaches WHERE TID = " & txtTID & " ")
con.Execute ("DELETE * FROM Teacher WHERE Tid = " & txtTID & " ")
MsgBox ("Record Deleted!")
con.Close
End Sub
Private Sub cmdUPDATE_Click()
Call loadcon
con.Execute "UPDATE Teacher SET Teacher.Tname = '" & txtTNAME & "', Teacher.Course = '" & txtCOURSE & "', Teacher.Password = '" & txtTpass & "' WHERE Tid = " & txtTID & "; "
MsgBox ("Record Updated ")
con.Close
End Sub
In the next part, you will learn to put all the above forms in one place called MDI form. The MDI form integrates your VB project forms together.
In Student Attendance Management System Using VB 6 Part 3, we will learn to create an interface for the attendance system that will meet the user requirements.
Here is the list of interfaces that we need to create.
Login for Student (frmLogin)
Login for Teacher (frmTLogin)
Login for Admin (frmALogin)
Main Screen (frmSplash)
View Attendance (frmViewAttendance)
Today’s Attendance (frmTodayAttendance)
Student Record Management (frmStudent)
Teacher Record Management (frmTeacherRecord)
Figure1-Names of forms for Attendance Management Project
For each of the above interfaces which also the VB form we will list out the following things.
System Diagram
Form Design
Components and its properties
Visual basic code
The system design is a high-level overview of individual components which show how each component of interface is related.
Connect To MS Access Database
Before we do anything we must first establish connection with MS Access database that we created earlier. If you did not create a database go to attendance management part-2 and create a database first.
To connect to database we will create a VB 6 module. Modules in VB are files that contain source codes. You can use them throughout your project without repeating them on each form. We must create a single module to connect with ms access database automatically.
To create a module, go to project explorer, right-click Form, select Add, and click Module.
Figure2-Create a Module in VB 6 for Database Connectivity
Code For Module.bas
Now we must add code so that our VB project can programmatically connect to the MS Access database.
Public con As New ADODB.Connection
Public rs As New ADODB.Recordset
Dim rsgrid As New ADODB.Recordset
Public constr As String
Public Sub loadcon()
constr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\VBProjects\Attendance\attendance.mdb;Persist Security Info=False"
con.Open constr
MsgBox ("connected")
End Sub
The function loadcon() is called whenever database connectivity is required. All connections must be closed as soon as form unloads
Main Screen
The main screen is the first screen that a user is going to see. This section discusses the design of the Student Attendance Management System Using VB 6 Part 3 main splash screen.
System Diagram for Main Screen
Figure5-System Diagram for Main Screen
Form Design (frmSpalsh)
The splash screen is a special screen. You can add a splash screen from Standard Toolbar > Form > under Add Form, select Add a Splash and modify the form according to your project.
Figure5-Main Screen of Attendance Management System
Components for Main Screen
The splash screen comes with pre-configured labels. You need to modify them and add some new controls in this project. Here are the list of components.
Form Details
Name : frmSplash
Caption : Attendance Management System
BackColor : Window Text
ForeColor : Highlight Text
Frame Control
Now you need to add a frame control and right click and click “send to back”. Existing controls are not visible;therefore, delete them and create identical labels on top of frame control. If you wish, skip frame control and continue creating rest of the controls.
Name : frameMain
Caption : 'leave empty'
BackColor : Window Text
Labels
Name : lblCompanyProduct
Caption : NotesforMSc
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 14px Bold
Name : lblProductName
Caption : Attendance Management System
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 20px Bold
Name : lblPlatform
Caption : Windows 7
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 16px Regular
Name : lblPlatform
Caption : 64-Bit
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 16px Regular
Name : lblCopyright
Caption : Copyright:Notesformsc2020
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 8px Regular
Name : lblCompany
Caption : Company-www.Notesformsc.org
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 8px Regular
Name : lblWarning
Caption : Warning: Do not copy or reproduce without permission except for the educational purpose
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 8px Regular
Option Explicit
Public userlogin As Integer
Private Sub cmdAdmin_Click()
frmALogin.Show
End Sub
Private Sub cmdStu_Click()
frmLogin.Show
End Sub
Private Sub cmdTeach_Click()
frmTULogin.Show
End Sub
Private Sub Form_KeyPress(KeyAscii As Integer)
Unload Me
End Sub
Private Sub Form_Load()
lblVersion.Caption = "Version " & App.Major & "." & App.Minor & "." & App.Revision
lblProductName.Caption = App.Title
End Sub
Private Sub Frame1_Click()
Unload Me
End Sub
Note that above code may give error because login forms are not created yet. Continue to create login forms.
Student Login
System Diagram For Student Login
The student login has two inputs – user id and password.
The easiest way to create a login form is to click Standard toolbar on VB project editor and click Form > select Log in Dialog from Add Form Window. The login in dialog comes with a preexisting code which you can modify later. In this example project, we have used the login dialog.
Figure3-System Diagram for Student Login
Form Design(frmLogin)
The second option is to create a new form and design the login screen yourself. Later , you can modify the appearance for the form.
Figure4-Student Login Form
Components for Student Login
The components for student login is listed below.
Form Details
Name : frmLogin
Caption :Login
BackColor : Window Text
ForeColor : Highlight Text
Labels
Name : lblUserID
Caption : SID
BackColor : Window Text
ForeColor : Highlight Text
Name : lblPassword
Caption : Password
BackColor : Window Text
ForeColor : Highlight Text
Textboxes
Name : txtSID
Text : 'leave blank'
Name : txtPassword
Text : 'leave blank'
All other properties remain same.
Code for Student Login
Option Explicit
Public LoginSucceeded As Boolean
Private Sub cmdCancel_Click()
'set the global var to false ' to denote a failed login
LoginSucceeded = False
Me.Hide
End Sub
Private Sub cmdOK_Click()
'making connection
Call loadcon
rs.Open "SELECT * FROM Student ", con, adOpenDynamic, adLockReadOnly
While Not rs.EOF
If rs!SID = Val(txtSID) Then
'check for correct password
If rs!Password = txtPassword Then
frmSplash.userlogin = rs!SID
'place code to here to pass the 'success to the calling sub 'setting a global var is the easiest LoginSucceeded = True
frmMenu.Show
Unload Me
'closing connection and recordset
rs.Close
con.Close
Exit Sub
Else
MsgBox "Invalid Password, try again!", , "Login"
txtPassword.SetFocus
SendKeys "{Home}+{End}"
End If
End If
rs.MoveNext
Wend
End Sub
Private Sub Form_Load()
frmSplash.Hide
End Sub

Teacher Login
System Diagram for Teacher Login
Figure5-System Design for Teacher Login
Form Design(frmTLogin)
You can create a form from the Standard Toolbar > Form > Log in Dialog and modify the form and its code. The second option is to create a new form and write login code which is difficult/
Figure6-Teacher Login Form
Components for Teacher Login
The components for teacher login is listed below. These are controls used in the form design according to the system diagram.
Form Details
Name : frmTULogin
Caption : Login
BackColor : Window Text
Labels
Name : lblTeacherLogin
Alignment : Center
Caption : TeacherLogin
BackColor : Window Text
ForeColor : Hightlight Text
Font : Arimo 12px Bold
Name : lblTID
Caption : TID
BackColor : Window Text
ForeColor : Hightlight Text
Name : lblTPassword
Caption : Password
BackColor : Window Text
ForeColor : Hightlight Text
Textboxes
Name : txtTID
Text : 'leave blank'
Name : txtPassword
Text : 'leave blank'
All other properties and controls stay the same. Note that the ‘leave blank‘ means you must remove any text already there.
Code for Teacher Login
The code for teacher login is created by modifying the preexisting code of “login dialog” form.
Option Explicit
Public LoginSucceeded As Boolean
Private Sub cmdCancel_Click()
'set the global var to false ' to denote a failed login
LoginSucceeded = False
Me.Hide
End Sub
Private Sub cmdOK_Click()
'making connection
Call loadcon
rs.Open "SELECT * FROM Teacher ", con, adOpenDynamic, adLockReadOnly
While Not rs.EOF
If rs!tid = Val(txtTID) Then
'check for correct password
If rs!Password = txtPassword Then
frmSplash.userlogin = rs!tid
'place code to here to pass the 'success to the calling sub 'setting a global var is the easiest LoginSucceeded = True
frmMenu.Show
Unload Me
'closing connection and recordset
rs.Close
con.Close
Exit Sub
Else
MsgBox "Invalid Password, try again!", , "Login"
txtPassword.SetFocus
SendKeys "{Home}+{End}"
End If
End If
rs.MoveNext
Wend
End Sub
Private Sub Form_Load()
frmSplash.Hide
End Sub
Administrator Login
System Diagram for Admin Login
The admin is the user with highest privileges, but the login behavior of administrator staff is the same as everyone.
Figure7-System Design for Admin Login
Form Design (frmALogin)
Create the login form in the same way that you did for student and teacher. See section above.
Figure8-Admin Login Form
Component for Admin Login
The list of components for admin login is given below.
Form Details
Name : frmALogin
Caption : Login
BackColor : Window Text
Labels
Name : lblAdminLogin
Caption : Admin Login
BackColor : Window Text
ForeColor : Highlight Text
Font : Arimo 12px Bold
Name : lblAID
Caption : AID
BackColor : Window Text
ForeColor : Highlight Text
Name : lblAPassword
Caption : Password
BackColor : Window Text
ForeColor : Highlight Text
TextBoxes
Name :txtAID
Text : 'leave blank'
Name :txtPassword
Text : 'leave blank'
Code for Admin Login
Option Explicit
Public LoginSucceeded As Boolean
Private Sub cmdCancel_Click()
'set the global var to false ' to denote a failed login
LoginSucceeded = False
Me.Hide
End Sub
Private Sub cmdOK_Click()
'making connection
Call loadcon
rs.Open "SELECT * FROM Admin ", con, adOpenDynamic, adLockReadOnly
While Not rs.EOF
If rs!AID = Val(txtAID) Then
'check for correct password
If rs!Password = txtPassword Then
frmSplash.userlogin = rs!AID
'place code to here to pass the 'success to the calling sub 'setting a global var is the easiest LoginSucceeded = True
frmMenu.Show
Unload Me
'closing connection and recordset
rs.Close
con.Close
Exit Sub
Else
MsgBox "Invalid Password, try again!", , "Login"
txtPassword.SetFocus
SendKeys "{Home}+{End}"
End If
End If
rs.MoveNext
Wend
End Sub
Private Sub Form_Load()
frmSplash.Hide
End Sub
In the next part we will continue building the interface for the attendance management system.
This is a 5 part series where we will learn to build Student Attendance Management System Using VB 6 using ms access as the back-end database and visual basic 6.0 as a front end.
This series goes through following stages and each of the stages is explained in a separate article in details.
Requirement Analysis
Database design, creating relations and relationships
Interface design and Coding
MDI form and Modules
Testing and Project completion
Before you start the project make sure that you have visual basic 6 installed and working. You also require MS Access any version above 2003-2007.
If you have a higher version of MS Access, then save your files in MS Access 2003-2007 format (.mdb).
Let us start building the application.
Requirement Analysis
The first thing before making any application is to understand the customer requirement and its called a requirement analysis. The end product is a document called SRS, but for this document, we will not create any such document.
This part will only analyze the customer requirement in details and project constraints that will affect the application to built.
In this case,
” The client is a college that wants an attendance management system. The customer wants the separate login for students, teachers, and admin staff. The student must be able to view only their own and other student attendance. The must be able to check attendance between certain date ranges (say semester) and find out how much is the deficit, current total and eligibility to sit in the exam.
The teachers can mark daily attendance for themselves and for other teachers if they are replacing them. They should be able to view attendance for their students as well.
The admin staff has full privilege they can view attendance, manage student records and teacher records but cannot mark attendance.”
You read the verbatim and make a note of all the important points that may be necessary for the project.
There are three kinds of users in this system – student, teacher and admin staff. So we now list out all the requirements of each user.
Student
Need separate login
View attendance
View friend’s attendance
Teacher
Need separate login
View attendance for a student
Mark attendance only for teacher that has logged in.
Admin Staff
Need separate login
View attendance
Manage student database
Manage the teacher database
Based on the requirement analysis, we can create a high-level diagram for the attendance management system and identify how the user will use the system. This is called a use-case diagram.
Use-Case Diagram
The use-case diagram identifies the goal of the system in meeting user requirements. In this section, we will create a use-case diagram for the attendance management system.
The first step is to identify the actors. An actor is a user with a specific role. Earlier we identified 3 actors.
Student
Teacher
Admin (short for administrator)
Based on the requirement analysis we could identify primary tasks of the system.
Login
View Attendance
Mark Today Attendance
Manage Student Records
Manage Teacher Records
Let’s make the use-case diagram for the attendance management system.
Use-Case Diagram_ Attendance Management System
Now that we have a clear picture of what the system must do to meet the user requirements. We have to look at the attendance management system in more detail.
System Diagram for Attendance Management
One way to show the details of the system is through a system diagram that provides a high-level view of the system. The system diagram shows the parts of the system that interact with each other.
We wish to create a system diagram that shows the hierarchical relationship between the components of the system.
System Diagram- Attendance Management
In future articles, we will discuss the system diagram for each of the components and see how they help in building interfaces for our project.
