Public Class MarksheetForm Private Sub btnCalculate_Click(sender As Object, e As EventArgs) Handles btnCalculate.Click Dim m1, m2, m3, total As Integer Dim per As Double Dim grade As String = "" If Integer.TryParse(txtSub1.Text, m1) AndAlso Integer.TryParse(txtSub2.Text, m2) AndAlso Integer.TryParse(txtSub3.Text, m3) Then If m1 < 35 Or m2 < 35 Or m3 < 35 Then lblStatus.Text = "Result: FAILED" lblGrade.Text = "Grade: F" total = m1 + m2 + m3 lblTotal.Text = "Total: " & total lblPer.Text = "Percentage: N/A" Exit Sub End If total = m1 + m2 + m3 per = total / 3.0 Select Case per Case Is >= 85 grade = "Distinction" Case Is >= 60 grade = "First Class" Case Is >= 50 grade = "Second Class" Case Is >= 35 grade = "Pass Class" End Select lblTotal.Text = "Total: " & total.ToString() lblPer.Text = "Percentage: " & Format(per, "0.00") & "%" lblGrade.Text = "Grade: " & grade lblStatus.Text = "Result: PASSED" Else MessageBox.Show("Enter valid marks (0-100).") End If End Sub End Class Use code with caution. Common Lab Bugs & Fixes
The best programmers are not those who never write bugs but those who have mastered the art of systematically finding and fixing them. Keep your tools ready, and happy debugging. vb net lab programs for bca students fix
Go to View > Solution Explorer , right-click your Form, and select View Designer . Go to View > Solution Explorer , right-click
These programs focus on core syntax, loops, and conditional statements. Visual Basic docs - get started, tutorials, reference. Visual Basic
Visual Basic .NET (VB.NET) is a core component of the Bachelor of Computer Applications (BCA) curriculum. It introduces students to Object-Oriented Programming (OOP), event-driven programming, and graphical user interface (GUI) development.
For database projects connecting to older Access drivers ( .mdb / .accdb ), change your project platform compilation settings from Any CPU to x86 via the Project Properties compile tab. Advance your practice by telling me:
If TextBox1.Text.Equals("admin", StringComparison.OrdinalIgnoreCase) Then MsgBox("Welcome!") End If Use code with caution. Copied to clipboard 3. Database Connectivity: Connection String Errors