[RESOLVED] [2008] 1 to 9 digits only textbox

[Lasering]

Hi!!

I'm creating a Sudoku Solver and as you know in a Sudoku you can only enter the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9. So in the textboxes of my program I have to limit the user input to these numbers. I went looking for a code for this in the forum and found this one from .paul.. This code is very good except that it also accepts the number 0. So I made my own:

    Private Sub Textbox1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Textbox1.TextChanged
        Select Case e.KeyValue
            Case Keys.Back, Keys.Delete, Keys.Left, Keys.Right, Keys.Home, Keys.End
            Case Keys.D1 To Keys.D9, Keys.NumPad1 To Keys.NumPad9
                If e.Modifiers <> 0 Then
                    e.SuppressKeyPress = True
                    e.Handled = False
                End If
            Case Else
                e.SuppressKeyPress = True
                e.Handled = False
        End Select
    End Sub

Everything works fine, from the exception that if I press Alt+0111 (or any other combination) I still get charater in the textbox (in this case an "o").
What is making me go crazy is that with If e.Modifiers <> 0 Then this input should be suppressed. How can I overcome this?

Thks a lot for the help!