VB开发——如何实现只允许输入汉字的文本框

Private Sub SrcTxt_Change()
Static SStr As String

Dim i As Integer

TotalNum = 0

L = Len(SrcTxt.Text)

For i = 1 To L

tmpStr = StrConv(Mid$(SrcTxt.Text, i, 1), vbWide)

If Asc(Mid$(SrcTxt.Text, i, 1)) < 0 Then

TotalNum = TotalNum + 1

SStr = SrcTxt.Text

Else

MsgBox "写入的不是汉字！"

SrcTxt.Text = Left(SrcTxt.Text, Len(SrcTxt.Text) - 1)

Exit Sub

End If

Next i

LblNum.Caption = Str$(TotalNum) + "个汉字"

End Sub

使用了change属性，可是实时的判断。

还顺便发现了几篇文章和资料，一起摘录过来了

关于VB操作Excel的：

http://blog.csdn.net/rainsnow/archive/2005/01/04/239385.aspx

http://blog.csdn.net/evanju/archive/2005/02/16/289557.aspx

http://blog.csdn.net/lwjvince/archive/2006/03/10/620942.aspx

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