VS 2010 cusotm textbox key event?

Private Sub OnBaseKeyDown(ByVal s As Object, ByVal e As KeyEventArgs)
            If e.KeyCode = Keys.Enter Then
                ' SendKeys.Send("{ENTER}")
                e.SuppressKeyPress = True
            End If
           
        End Sub

Private Sub myTextBox1_KeyDown(ByVal sender As System.Object, _
                                     ByVal e As System.Windows.Forms.KeyEventArgs) _
                                     Handles mylTextBox1.KeyDown
 
              If e.KeyCode = Keys.Enter Then
            MsgBox("Help")
             End If
 
        End Sub