Vb Net Lab Programs For Bca Students Fix

This program focuses on basic controls like TextBoxes, Labels, and Buttons.

Public Class Form1 Private Sub btnAdd_Click(sender As Object, e As EventArgs) Handles btnAdd.Click Try Dim num1 As Double = Val(txtFirst.Text) Dim num2 As Double = Val(txtSecond.Text) lblResult.Text = "Result: " & (num1 + num2).ToString() Catch ex As Exception MessageBox.Show("Please enter valid numbers.") End Try End Sub End Class Use code with caution. vb net lab programs for bca students fix

Use Val() or Double.TryParse() to avoid "Conversion from string to type Double is not valid" errors when a user leaves a textbox empty. 2. Simple Interest Calculator This program focuses on basic controls like TextBoxes,