hello everybody, this is my first post although i've learned very much from the forum. I am having problems trying to allow only numbers to be entered into my textbox, this is a n00b mistake i know but i really can't figure it out. i know it has to be in the textbox_keydown event but i really need some other opinions.

my code is below.. what am i doing wrong?

Code:
Private Sub txtPsx_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles txtPsx.KeyDown

        Select Case e.KeyValue
            Case Keys.A To Keys.Z
                e.Handled = False
                MsgBox("Please enter a number.", MsgBoxStyle.OkOnly)
            Case Keys.D0 To Keys.D9
                e.Handled = True
            Case Else
                e.Handled = True
        End Select

    End Sub