Thanks that helped alot and now I can finish the project that i was working on. Thanks for the Help Dave

How do I turn on the integer overflow checking to On, so that I can get a System.OverflowException exception thrown. 'Declare FirstNum and SecondNum variables Dim FirstNum, SecondNum As Short Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click End End Sub Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click 'Assign text box values to variables Try FirstNum = TextBox1.Text SecondNum = TextBox2.Text Catch When Err.Number = 6 'Overflow error MsgBox("Out of calculators peramiters") Catch When Err.Number = 11 'Division by zero error MsgBox("Can't divide by zero") End Try 'Determine checked button and calculate If RadioButton1.Checked = True Then TextBox3.Text = FirstNum + SecondNum End If If RadioButton2.Checked = True Then TextBox3.Text = FirstNum - SecondNum End If If RadioButton3.Checked = True Then TextBox3.Text = FirstNum * SecondNum End If If RadioButton4.Checked = True Then TextBox3.Text = FirstNum / SecondNum End If End Sub End Class Thanks for the Help Dave

Sorry it is a short just got in a hurry and misstyped it. Thanks for letting me know Thanks for the Help Dave

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