在TEXT文本框中只允许输入数字和小数点，如何实现？只能编程实现吗？
Private Sub Text1_KeyPress(KeyAscii As Integer)
If (Chr(KeyAscii) > "9" Or Chr(KeyAscii) < "0") And Chr(KeyAscii) <> "." Then
KeyAscii = 0
End If
End Sub
回复人：y1g1y1(袁飞☆曾经沧海难为水，除却VB不是云☆)
在keypress中进行判断，如果不合格就sendkeys(vb_backspace)
具体函数的参数我不太会写了，就是用sendkeys的
回复人：playyuer(女㊣爱)(2001-5-8 13:09:00) 得0分
Private Sub Text1_KeyPress(KeyAscii As Integer)
Select Case KeyAscii
Case Asc("-") '允许负数
If Text1.SelStart = 0 Then
If Left(Text1.Text, 1) = "-" Then
KeyAscii = 0
Beep
End If
Else
KeyAscii = 0
Beep
End If
Case 8
'无变化,退格键不屏蔽
Case Asc(" ") '32
If Text1.SelLength = 0 Then
KeyAscii = 0
End If
Case Asc(".") '46 '允许小数点
If InStr(Text1.Text, ".") Then
KeyAscii = 0
End If
Case Is < Asc(0) '48
KeyAscii = 0
Case Is > Asc(9) '57
KeyAscii = 0
End Select
End Sub
回复人：liu_feng_fly(一只菜鸟，忽忽悠悠的就飞来了！！)
