vb 简单问题，请高手帮忙,在线！！！ - VB / 基础类

vb text文本框当按一下回车时为文本框无法编辑再按一下又可以编辑？
补充问题，如何使焦点一直保持在文本框上？

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VB code:
Option Explicit

Private Sub Form_Load()
Timer1.Interval = 50
End Sub

Private Sub Text1_KeyDown(KeyCode As Integer, Shift As Integer)
Static i As Long
If KeyCode = vbKeyReturn Then
If i Mod 2 = 0 Then
Text1.Locked = True
i = i + 1
Else
Text1.Locked = False
i = i + 1
End If
End If
End Sub

Private Sub Timer1_Timer()
Text1.SetFocus
End Sub

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牛！！

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对一楼代码精简一下
VB code:

Private Sub Text1_KeyDown(KeyCode As Integer, Shift As Integer)

If KeyCode = vbKeyReturn Then

Text1.Locked = Not Text1.Locked

End If
End Sub

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顶......