關於UserControl內的KeyDown問題????(編號:4375)

請問高手,弟建立了一個控制項,裏面只放了一個TextBox,
接著引用了TextBox的KeyDown,KeyPress,KeyUp事件,
設定UserControl的KeyPreview=True.
然後弟在Form裏引用進來,Form1.KeyPreview=True
這時按下[上][下][左][右][Del],不是應該會傳到Form1_KeyDown的事件嗎??
但是好像都被UserControl裏的TextBox_KeyDown給吃掉了??
還是弟的程式寫錯了...><...
P.S.弟試了一下,只有[上][下][左][右][Del]會被吃掉...

------- UserControl 的程式(就這樣而以) -------------------
Option Explicit
Public Event KeyDown(KeyCode As Integer, Shift As Integer)
Public Event KeyPress(KeyAscii As Integer)
Public Event KeyUp(KeyCode As Integer, Shift As Integer)
Private Sub Text1_KeyDown(KeyCode As Integer, Shift As Integer)
RaiseEvent KeyDown(KeyCode, Shift)
End Sub
Private Sub Text1_KeyPress(KeyAscii As Integer)
RaiseEvent KeyPress(KeyAscii)
End Sub
Private Sub Text1_KeyUp(KeyCode As Integer, Shift As Integer)
RaiseEvent KeyUp(KeyCode, Shift)
End Sub