: A database-driven application to Insert, Update, Delete, and View student records.
Public Class Form1 Private Sub btnAdd_Click(sender As Object, e As EventArgs) Handles btnAdd.Click Dim n1, n2, res As Double ' Fix: Use Double.TryParse for robust error handling If Double.TryParse(txtNum1.Text, n1) And Double.TryParse(txtNum2.Text, n2) Then res = n1 + n2 lblResult.Text = "Result: " & res.ToString() Else MessageBox.Show("Please enter valid numbers") End If End Sub End Class Use code with caution. 3. String Manipulation Program vb net lab programs for bca students fix
: If your database connection fails with an "OleDbProvider is not registered on the local machine" error, change your project target CPU from Any CPU to x86 (or x64 depending on your Microsoft Office installation). : A database-driven application to Insert, Update, Delete,