我是neeeeeeeeeeeeeeeeeeded Help！ [英] I neeeeeeeeeeeeeeed Help!

问题描述

Plz帮助我如何为这样的IP地址验证掩码文本框###。###。###。###？我怎么能进入194.5.6.222？无需输入184.005.006.222?

解决方案

我不会使用屏蔽编辑框 - 它们实际上只对固定输入格式有用，根据需要不灵活。

相反，我会使用标准TextBox和正则表达式来验证它：

 ^（？< ;第一→2 [0-4] \d | 25 [0-5] | [01] \d\d）\（小于？？第二→2 [0-4] \d | 25 [0-5] | [01] \d\d）\（小于？？第三→2 [0-4] \d | 25 [0-5] | [01]？ \d\d）\（<第四>？？？？2 [0-4] \d | 25 [0-5] | [01] \d\d）

< /第四>< /第三>< /秒>< /第一>

Plz help me how to validate a masked textbox for an ip address like this ###.###.###.###? how can i enter 194.5.6.222? without having to enter it as 184.005.006.222?

解决方案

I wouldn''t use a masked edit box for this - they are really only usefull for fixed input format, not flexible ones as you need.
Instead, I would use a standard TextBox and a regex to validate it:

^(?<first>2[0-4]\d|25[0-5]|[01]?\d\d?)\.(?<second>2[0-4]\d|25[0-5]|[01]?\d\d?)\.(?<third>2[0-4]\d|25[0-5]|[01]?\d\d?)\.(?<fourth>2[0-4]\d|25[0-5]|[01]?\d\d?)

</fourth></third></second></first>

这篇关于我是neeeeeeeeeeeeeeeeeeded Help！的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！