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!!) 
  
 
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