我需要表达式验证器ASP.NET的帮助 [英] I need help in expression validator ASP.NET

问题描述

我希望表达式不仅允许数字，平均允许数字和所有东西，但应该至少有一个字母



我尝试过：

i want expression allow not only numeric ,mean allow number and all thing but should have at least one letter

What I have tried:

<asp:RegularExpressionValidator ID="RegularExpressionValidator4" runat="server" ControlToValidate="Company"
                    ValidationExpression="[!0-9]" ErrorMessage="at least one letter"
                    Display="none" />

推荐答案

如果你想要至少一个字母，那么它是微不足道的：

If you want at least one letter, then it's trivial:

[a-zA-Z]

w ^不匹配任何包含至少一个字母字符的文本。

如果你想要至少一个字母或数字，那么这也很简单：

Will match any text which contains at least one alphabetic character.
If you want at least one letter-or-number, then that's simple too:

\w

将匹配包含至少一个字母数字字符的任何邮件。

如果这不是您要查找的内容，那么您需要提供更好的示例要检查的好和坏文本。



它也值得一个正则表达式工具：我使用快餐 [ ^ ] - 它是免费的，它会检查并生成正则表达式。

Will match any message containing at least one alphanumeric character.
If that isn't what you are looking for then you need to give us better examples of "good" and "bad" text to check for.

It's also worth getting a Regex tool: I use Expresso[^] - it's free, and it examines and generates Regular expressions.

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