BLACKBOXAI
Generated on: 19/06/2025 20:12:39
User
i was tasked to design an application for students enrolling to our high school for the first
time so i was tasked to design using the language vb.net for this project my project should
have a login page , followed by the level they wish to attend , then follwed by entering your
marks of your old school then the programme should asses the marks and assain the
student a class regular subjects must be entered and also the combination the student is
doing must be clarified
BLACKBOXAI
I'll create a comprehensive student enrollment application for your high school using
VB.NET. I'll structure this as a single Windows Forms application with multiple forms to
handle the enrollment process. The application will include:
1. A login page to authenticate users
2. A grade selection form
3. A marks entry and assessment system
4. Class assignment based on academic performance
5. Subject and combination selection
Here's the complete VB.NET solution:
vb
Imports System.Data.SqlClient
Public Class frmLogin
Private Sub btnLogin_Click(sender As Object, e As EventArgs) Handles
btnLogin.Click
' Basic authentication - in production, use proper authentication with hashed
passwords
If txtUsername.Text = "admin" And txtPassword.Text = "admin123" Then
Dim gradeForm As New frmGradeSelection
gradeForm.Show()
Me.Hide()
Else
MessageBox.Show("Invalid credentials. Please try again.", "Login Failed",
MessageBoxButtons.OK, MessageBoxIcon.Error)
End If
End Sub
End Class
Generated by BlackBox AI
Public Class frmGradeSelection
Private Sub btnSubmit_Click(sender As Object, e As EventArgs) Handles
btnSubmit.Click
If cmbGrade.SelectedIndex = -1 Then
MessageBox.Show("Please select a grade level", "Selection Required",
MessageBoxButtons.OK, MessageBoxIcon.Warning)
Return
End If
Dim marksForm As New
frmMarksEntry(Integer.Parse(cmbGrade.SelectedItem.ToString()))
marksForm.Show()
Me.Hide()
End Sub
Private Sub frmGradeSelection_Load(sender As Object, e As EventArgs) Handles
MyBase.Load
' Populate grade levels (8-12)
For i As Integer = 8 To 12
cmbGrade.Items.Add(i.ToString())
Next
End Class
End Class
Public Class frmMarksEntry
Private gradeLevel As Integer
Private subjects As New List(Of String)
Private subjectMarks As New Dictionary(Of String, Integer)
Public Sub New(grade As Integer)
InitializeComponent()
gradeLevel = grade
InitializeSubjects()
End Sub
Private Sub InitializeSubjects()
' Core subjects for all grades
subjects.Add("Mathematics")
subjects.Add("English")
subjects.Add("Science")
' Additional subjects based on grade level
Select Case gradeLevel
Case 8, 9
subjects.Add("Social Studies")
subjects.Add("Life Orientation")
Case 10 To 12
subjects.Add("First Additional Language")
subjects.Add("Life Orientation")
subjects.AddRange({"Accounting", "Physical Science", "Life Sciences",
"Business Studies", "History", "Geography"})
End Select
' Create UI elements for subject marks entry
CreateMarksEntryControls()
End Sub
Generated by BlackBox AI
Private Sub CreateMarksEntryControls()
Dim yPosition As Integer = 20
For Each subject In subjects
' Create label for subject
Dim lblSubject As New Label()
lblSubject.Text = subject
lblSubject.Location = New Point(20, yPosition)
pnlMarks.Controls.Add(lblSubject)
' Create textbox for mark entry
Dim txtMark As New TextBox()
txtMark.Name = "txt" & subject.Replace(" ", "")
txtMark.Location = New Point(150, yPosition)
txtMark.Width = 50
pnlMarks.Controls.Add(txtMark)
yPosition += 30
Next
' Adjust form height based on controls
Me.Height = yPosition + 100
btnSubmit.Top = yPosition + 10
End Sub
Private Sub btnSubmit_Click(sender As Object, e As EventArgs) Handles
btnSubmit.Click
' Validate and collect marks
For Each subject In subjects
Dim controlName As String = "txt" & subject.Replace(" ", "")
Dim txtMark As TextBox = CType(pnlMarks.Controls(controlName), TextBox)
If String.IsNullOrEmpty(txtMark.Text) Or Not IsNumeric(txtMark.Text) Then
MessageBox.Show($"Please enter a valid mark for {subject}",
"Validation Error", MessageBoxButtons.OK, MessageBoxIcon.Warning)
Return
End If
Dim mark As Integer = Integer.Parse(txtMark.Text)
If mark < 0 Or mark > 100 Then
MessageBox.Show($"Marks for {subject} must be between 0 and 100",
"Validation Error", MessageBoxButtons.OK, MessageBoxIcon.Warning)
Return
End If
subjectMarks.Add(subject, mark)
Next
' Calculate average
Dim average As Double = subjectMarks.Values.Average()
' Determine appropriate class based on average
Dim className As String
Select Case average
Case Is >= 80
className = "A (Advanced)"
Case 70 To 79
className = "B (Above Average)"
Generated by BlackBox AI
Case 60 To 69
className = "C (Average)"
Case 50 To 59
className = "D (Basic)"
Case Else
className = "E (Remedial)"
End Select
' Show combination selection
Dim combinationForm As New frmCombinationSelection(className, subjectMarks,
gradeLevel)
combinationForm.Show()
Me.Hide()
End Sub
End Class
Public Class frmCombinationSelection
Private className As String
Private subjectMarks As Dictionary(Of String, Integer)
Private gradeLevel As Integer
Private availableCombinations As List(Of String)
Private selectedSubjects As New List(Of String)
Public Sub New(_className As String, _subjectMarks As Dictionary(Of String,
Integer), _gradeLevel As Integer)
InitializeComponent()
className = _className
subjectMarks = _subjectMarks
gradeLevel = _gradeLevel
lblClassAssignment.Text = $"Based on your marks, you've been assigned to:
{className}"
InitializeCombinations()
End Sub
Private Sub InitializeCombinations()
' Define available combinations based on grade level
If gradeLevel >= 10 Then
availableCombinations = New List(Of String) From {
"Science (Maths, Physical Science, Life Science)",
"Commerce (Accounting, Business Studies, Economics)",
"Humanities (History, Geography, Additional Language)",
"General (Mixed subjects)"
}
Else
availableCombinations = New List(Of String) From {
"General (All core subjects)"
}
End If
cmbCombination.DataSource = availableCombinations
' Display mandatory core subjects
lstSelectedSubjects.Items.Add("Mathematics (Compulsory)")
lstSelectedSubjects.Items.Add("English (Compulsory)")
lstSelectedSubjects.Items.Add("Life Orientation (Compulsory)")
Generated by BlackBox AI
selectedSubjects.Add("Mathematics")
selectedSubjects.Add("English")
selectedSubjects.Add("Life Orientation")
End Sub
Private Sub cmbCombination_SelectedIndexChanged(sender As Object, e As EventArgs)
Handles cmbCombination.SelectedIndexChanged
' Clear previous elective subjects
lstSelectedSubjects.Items.Clear()
selectedSubjects.Clear()
' Add compulsory subjects first
lstSelectedSubjects.Items.Add("Mathematics (Compulsory)")
lstSelectedSubjects.Items.Add("English (Compulsory)")
lstSelectedSubjects.Items.Add("Life Orientation (Compulsory)")
selectedSubjects.Add("Mathematics")
selectedSubjects.Add("English")
selectedSubjects.Add("Life Orientation")
' Add subjects based on combination
Dim selectedCombination As String = cmbCombination.SelectedItem.ToString()
' Science stream
If selectedCombination.StartsWith("Science") Then
lstSelectedSubjects.Items.Add("Physical Science (Elective)")
lstSelectedSubjects.Items.Add("Life Science (Elective)")
selectedSubjects.Add("Physical Science")
selectedSubjects.Add("Life Science")
' Commerce stream
ElseIf selectedCombination.StartsWith("Commerce") Then
lstSelectedSubjects.Items.Add("Accounting (Elective)")
lstSelectedSubjects.Items.Add("Business Studies (Elective)")
selectedSubjects.Add("Accounting")
selectedSubjects.Add("Business Studies")
' Humanities stream
ElseIf selectedCombination.StartsWith("Humanities") Then
lstSelectedSubjects.Items.Add("History (Elective)")
lstSelectedSubjects.Items.Add("Geography (Elective)")
lstSelectedSubjects.Items.Add("First Additional Language (Elective)")
selectedSubjects.Add("History")
selectedSubjects.Add("Geography")
selectedSubjects.Add("First Additional Language")
' General stream
Else
lstSelectedSubjects.Items.Add("Social Studies (Elective)")
selectedSubjects.Add("Social Studies")
End If
End Sub
Private Sub btnFinalize_Click(sender As Object, e As EventArgs) Handles
btnFinalize.Click
' Validate subject choices against marks
For Each subject In selectedSubjects
If Not subjectMarks.ContainsKey(subject) Then
MessageBox.Show($"Cannot select
Generated {subject}
by BlackBox AI - no marks provided for
this subject", "Validation Error", MessageBoxButtons.OK, MessageBoxIcon.Warning)
Return
End If
' Additional validation for stream requirements
If cmbCombination.SelectedItem.ToString().StartsWith("Science") AndAlso _
(subject = "Physical Science" Or subject = "Life Science") AndAlso _
subjectMarks(subject) < 50 Then
MessageBox.Show($"Insufficient marks in {subject} for Science stream
(minimum 50 required)", "Validation Error", MessageBoxButtons.OK,
MessageBoxIcon.Warning)
Return
End If
Next
' Save enrollment data (in a real application, this would save to a database)
Dim enrollmentSuccessful As Boolean = SaveEnrollment()
If enrollmentSuccessful Then
Dim summaryForm As New frmEnrollmentSummary(className,
cmbCombination.SelectedItem.ToString(), selectedSubjects, subjectMarks)
summaryForm.Show()
Me.Hide()
Else
MessageBox.Show("Enrollment failed. Please try again or contact
support.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
End If
End Sub
Private Function SaveEnrollment() As Boolean
Try
' In a real application, this would connect to a database
' For demo purposes, we'll simulate successful save
Return True
Catch ex As Exception
' Log error (in real application)
Return False
End Try
End Function
End Class
Public Class frmEnrollmentSummary
Public Sub New(className As String, combination As String, subjects As List(Of
String), marks As Dictionary(Of String, Integer))
InitializeComponent()
' Display enrollment summary
lblSummary.Text = $"Enrollment Successful!{Environment.NewLine}
{Environment.NewLine}" &
$"Class: {className}{Environment.NewLine}" &
$"Combination: {combination}{Environment.NewLine}
{Environment.NewLine}" &
"Subject Selections and Marks:"
' Add subjects and marks to list view
For Each subject In subjects
Generated by BlackBox AI
Dim mark As Integer = marks(subject)
lstSummary.Items.Add($"{subject}: {mark}%")
Next
' Calculate and display average
Dim average As Double = subjects.Select(Function(s) marks(s)).Average()
lblAverage.Text = $"Overall Average: {Math.Round(average, 2)}%"
End Sub
Private Sub btnPrint_Click(sender As Object, e As EventArgs) Handles
btnPrint.Click
' Print functionality would go here
MessageBox.Show("Print functionality would be implemented here", "Print",
MessageBoxButtons.OK, MessageBoxIcon.Information)
End Sub
Private Sub btnFinish_Click(sender As Object, e As EventArgs) Handles
btnFinish.Click
Application.Exit()
End Sub
End Class
To use this application:
1. Create a new VB.NET Windows Forms Application project in Visual Studio
2. Replace the default Form1 with the code above
3. Add four additional forms (frmGradeSelection, frmMarksEntry,
frmCombinationSelection, frmEnrollmentSummary)
4. Copy the corresponding code into each form
5. Run the application
Key Features:
1. Secure Login System: Basic authentication (would be enhanced in production)
2. Grade Selection: Students select their academic level
3. Marks Entry: Dynamic form creation based on grade level
4. Automated Class Assignment: Assigns classes based on academic performance
- A (Advanced): 80-100% - B (Above Average): 70-79% - C (Average): 60-69% - D (Basic):
50-59% - E (Remedial): Below 50%
5. Combination Selection: Science, Commerce, Humanities, or General streams
6. Validation: Ensures data integrity at every step
7. Summary Report: Displays final enrollment details
You can enhance this further by:
Generated by BlackBox AI
1. Adding database connectivity to persist enrollment data
2. Implementing proper password hashing for the login system
3. Adding support for uploading previous school reports
4. Including photo upload capability for student IDs
5. Adding parental/guardian information collection
User
and also could assist me with the form design
BLACKBOXAI
Certainly! Below is a guide for designing the forms in your VB.NET application, including
the layout and controls for each form. You can use the Windows Forms Designer in Visual
Studio to create these forms visually.
1. Login Form (frmLogin)
Controls:
Label: lblUsername - Text: "Username"
TextBox: txtUsername
Label: lblPassword - Text: "Password"
TextBox: txtPassword - PasswordChar:
Button: btnLogin - Text: "Login"
Layout:
Arrange the labels and text boxes vertically.
Place the btnLogin below the text boxes.
2. Grade Selection Form (frmGradeSelection)
Controls:
Label: lblSelectGrade - Text: "Select Grade Level"
ComboBox: cmbGrade - (Populate with grades 8 to 12)
Button: btnSubmit - Text: "Next"
Layout:
Place the label at the top.
Below it, add the combo box for grade selection.
Place the btnSubmit below the combo box.
Generated by BlackBox AI
3. Marks Entry Form (frmMarksEntry)
Controls:
Label: lblEnterMarks - Text: "Enter Your Marks"
Panel: pnlMarks - (To hold dynamically created controls)
Button: btnSubmit - Text: "Submit"
Layout:
Place the lblEnterMarks at the top.
Below it, add the pnlMarks which will dynamically contain labels and text boxes for each
subject.
Place the `
User
for the additional form could you display the number of students already registered
BLACKBOXAI
Certainly! To display the number of students already registered, you can modify the
Enrollment Summary Form (frmEnrollmentSummary) to include a label that shows the total
number of registered students.
Updated Form Design for Enrollment Summary (frmEnrollmentSummary)
Controls:
Label: lblSummary - Text: "Enrollment Successful!" (This will be updated dynamically)
Label: lblAverage - Text: "Overall Average: " (This will be updated dynamically)
ListBox: lstSummary - To display subjects and their corresponding marks.
Label: lblTotalStudents - Text: "Total Students Registered: " (This will be updated
dynamically)
Button: btnPrint - Text: "Print"
Button: btnFinish - Text: "Finish"
Layout:
Place lblSummary at the top.
Below it, add lblTotalStudents to display the number of registered students.
Below that, add lblAverage to show the overall average.
Below the average label, add lstSummary to list the subjects and marks.
Place the btnPrint and btnFinish buttons at the bottom.
Generated by BlackBox AI
Code to Update the Total Students Registered
You will need to maintain a count of registered students. This can be done using a static
variable or by querying a database. For simplicity, let's assume you have a static variable
that keeps track of the number of registered students.
Here’s how you can implement this:
1. Add a Static Variable: In a suitable class (e.g., a module or a class that handles
student data), add a static variable to keep track of the number of registered students.
vb
Public Module StudentData
Public TotalRegisteredStudents As Integer = 0
End Module
2. Update the Count on Enrollment: In the SaveEnrollment function of the
frmCombinationSelection , increment the count when a new student is successfully
registered.
vb
Private Function SaveEnrollment() As Boolean
Try
' Simulate saving to a database
StudentData.TotalRegisteredStudents += 1 ' Increment the count
Return True
Catch ex As Exception
' Log error (in real application)
Return False
End Try
End Function
3. Display the Count in the Enrollment Summary: In the constructor of
frmEnrollmentSummary , set the text of lblTotalStudents to show the current count.
vb
Public Sub New(className As String, combination As String, subjects As List(Of
String), marks As Dictionary(Of String, Integer))
InitializeComponent()
' Display enrollment summary
lblSummary.Text = $"Enrollment Successful!{Environment.NewLine}
{Environment.NewLine}" &
$"Class: {className}{Environment.NewLine}" &
$"Combination: {combination}{Environment.NewLine}
{Environment.NewLine}" &
"Subject Selections and Marks:"
' Add subjects and marks to list view
For Each subject In subjects Generated by BlackBox AI
Dim mark As Integer = marks(subject)
lstSummary.Items.Add($"{subject}: {mark}%")
Next
' Calculate and display average
Dim average As Double = subjects.Select(Function(s) marks(s)).Average()
lblAverage.Text = $"Overall Average: {Math.Round(average, 2)}%"
' Display total registered students
lblTotalStudents.Text = $"Total Students Registered:
{StudentData.TotalRegisteredStudents}"
End Sub
Summary of Changes
Static Variable: Added to keep track of total registered students.
Increment Count: Updated in the SaveEnrollment function.
Display Count: Shown in the lblTotalStudents label on the enrollment summary form.
This will allow you to keep track of the number of students registered and display it in the
enrollment summary. You can further enhance this by integrating a database to persist the
count across application sessions.
User
the $ sign is refusing to be accepted
BLACKBOXAI
It seems there might be some confusion regarding the use of the dollar sign in the context
of VB.NET. In VB.NET, the dollar sign ( $ ) is not used for string interpolation or formatting
like in some other programming languages. Instead, you can use the & operator for string
concatenation.
Here’s how you can modify the relevant parts of the code to avoid using the dollar sign and
instead use string concatenation:
Updated Code Snippets
1. Displaying Enrollment Summary:
Replace the string interpolation with concatenation using the & operator.
vb
' Display enrollment summary
lblSummary.Text = "Enrollment Successful!" & Environment.NewLine &
Environment.NewLine &
"Class: " & className & Environment.NewLine &
Generated by BlackBox AI
"Combination: " & combination & Environment.NewLine &
Environment.NewLine &
"Subject Selections and Marks:"
2. Displaying Total Registered Students:
Similarly, update the total students label.
vb
lblTotalStudents.Text = "Total Students Registered: " &
StudentData.TotalRegisteredStudents
3. Calculating and Displaying Average:
When calculating and displaying the average, you can also use concatenation:
vb
lblAverage.Text = "Overall Average: " & Math.Round(average, 2) & "%"
Complete Example for frmEnrollmentSummary
Here’s how the complete constructor for frmEnrollmentSummary would look with the
changes:
vb
Public Sub New(className As String, combination As String, subjects As List(Of
String), marks As Dictionary(Of String, Integer))
InitializeComponent()
' Display enrollment summary
lblSummary.Text = "Enrollment Successful!" & Environment.NewLine &
Environment.NewLine &
"Class: " & className & Environment.NewLine &
"Combination: " & combination & Environment.NewLine &
Environment.NewLine &
"Subject Selections and Marks:"
' Add subjects and marks to list view
For Each subject In subjects
Dim mark As Integer = marks(subject)
lstSummary.Items.Add(subject & ": " & mark & "%")
Next
' Calculate and display average
Dim average As Double = subjects.Select(Function(s) marks(s)).Average()
lblAverage.Text = "Overall Average: " & Math.Round(average, 2) & "%"
' Display total registered students
lblTotalStudents.Text = "Total Students Registered: " &
Generated by BlackBox AI
StudentData.TotalRegisteredStudents
End Sub
Summary
Use the & operator for string concatenation in VB.NET instead of the dollar sign.
Ensure that all string manipulations in your code follow this convention to avoid syntax
errors.
If you have any further questions or need additional assistance, feel free to ask!
Generated by BlackBox AI
