Vb Net Lab Programs For Bca Students Fix 2021 Jun 2026

: Use MsgBox and InputBox to accept a user's name and display a personalized welcome message. 2. Logical & Mathematical Exercises

Public Sub AddStudent() Dim studentID As String = InputBox("Enter Student ID") Dim name As String = InputBox("Enter Name") Dim email As String = InputBox("Enter Email") Dim phoneNumber As String = InputBox("Enter Phone Number") Dim address As String = InputBox("Enter Address")

Displaying database records in a table format within the form. Helpful Resources

Public Class Form1 Private Sub btnAdd_Click(sender As Object, e As EventArgs) Handles btnAdd.Click Compute("+") End Sub Private Sub btnSubtract_Click(sender As Object, e As EventArgs) Handles btnSubtract.Click Compute("-") End Sub Private Sub Compute(operation As String) If String.IsNullOrWhiteSpace(txtNum1.Text) Or String.IsNullOrWhiteSpace(txtNum2.Text) Then MessageBox.Show("Please enter values in both fields.", "Input Error", MessageBoxButtons.OK, MessageBoxIcon.Warning) Exit Sub End If Dim n1, n2, result As Double If Double.TryParse(txtNum1.Text, n1) AndAlso Double.TryParse(txtNum2.Text, n2) Then Select Case operation Case "+" : result = n1 + n2 Case "-" : result = n1 - n2 Case "/" If n2 = 0 Then MessageBox.Show("Division by zero is not allowed.", "Math Error", MessageBoxButtons.OK, MessageBoxIcon.Error) Exit Sub End If result = n1 / n2 End Select lblResult.Text = "Result: " & result.ToString() Else MessageBox.Show("Please enter valid numeric digits.", "Format Error", MessageBoxButtons.OK, MessageBoxIcon.Error) End If End Sub End Class Use code with caution. Common Bugs & Fixes vb net lab programs for bca students fix

This method is not only efficient but also avoids common off-by-one errors.

If rowsAffected > 0 Then MessageBox.Show("Record Saved Successfully!") Else MessageBox.Show("Failed to Save Record.") End If

Are you using , or an older version?

' Correct loop bounds for an array of size n For i = 0 To size - 2 For j = 0 To size - i - 2 If a(j) > a(j + 1) Then ' Swap elements Dim temp As Integer = a(j) a(j) = a(j + 1) a(j + 1) = temp End If Next Next Use code with caution. Copied to clipboard Fix Detail : Ensure the inner loop stops at size - i - 2

By understanding these common scenarios and applying the correct fixes, BCA students can effectively master their VB.NET lab assignments. If you can share: The specific you are seeing The part of the code that is failing I can give you a tailored fix. Share public link

Public Sub New(studentID As String, name As String, email As String, phoneNumber As String, address As String) Me.studentID = studentID Me.name = name Me.email = email Me.phoneNumber = phoneNumber Me.address = address End Sub : Use MsgBox and InputBox to accept a

: Always document your code with comments, maintain proper indentation, and test edge cases (negative numbers, empty inputs, large values). A well-tested program is better than a feature-rich buggy one.

: Generating Factorial, Fibonacci series, and Prime numbers. GUI Controls

Use Application.StartupPath to dynamically define the database path so your project works on any computer. ' Correct loop bounds for an array of