[RESOLVED] No ABC Chars!

[Zcat]

Ok, I used this code to stop letters from being entered into a txtBox, could someone help me to change this so that Nums cannot be entered.....

Private Sub txtExponent_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) _
        Handles txtExponent.KeyPress, txtInput.KeyPress
        If e.KeyChar Like "[!a-zA-Z]" AndAlso Not e.KeyChar = ControlChars.Back Then
            e.Handled = True
        End If
    End Sub
End Class