要求文本框中只能输入数字的方法总结. 大家好,可不可以麻烦大家帮忙总结一下在文本框中只能输入数字的方法.方便的话麻烦写一下代码.谢谢!! __________________________________________________________________________ 正则，可以用NET自带的正则控件，也可以使用JS。 __________________________________________________________________________ 如果是输入的时候就控制不允许输入，那可以使用JS或者Ajax.Net的FilteredTextBox 如果是输入后想验证的话，那就用验证控件，很方便 __________________________________________________________________________ 放一个CompareValidator， OPERATOR设置为：DataTypeCheck，然后TYPE：Integer，这算不算？ __________________________________________________________________________ 这个帖子讨论了n多种方法，够你用了 http://community.csdn.net/Expert/topic/5386/5386616.xml?temp=.9118158 __________________________________________________________________________ Thank you!!! __________________________________________________________________________ 定义ASCII码? __________________________________________________________________________ 学会搜索 __________________________________________________________________________ Private nonNumberEntered As Boolean = False Private Sub textBox1_KeyDown(sender As Object,e As _ System.Windows.Forms.KeyEventArgs) _ Handles textBox1.KeyDown nonNumberEntered = False If e.KeyCode < Keys.D0 OrElse e.KeyCode > Keys.D9 Then If e.KeyCode < Keys.NumPad0 OrElse e.KeyCode > Keys.NumPad9 Then If e.KeyCode <> Keys.Back Then nonNumberEntered = True End If End If End If End Sub ---------------------------------------------------------------------------- Private Sub textBox1_KeyPress(sender As Object,e As _ System.Windows.Forms.KeyPressEventArgs) _ Handles textBox1.KeyPress If nonNumberEntered = True Then e.Handled = True End If End Sub End Class 就是上面的这两段代码,一个KeyDown事件,一个KeyPress事件,联合起来用. (代码帖出来有点乱) __________________________________________________________________________ 原文链接：/vb/263821.html