特殊字符检查 [英] special character checks

问题描述

我有一个字段userId，我想在其中验证特殊字符的有效性.我想限制用户输入任何特殊字符.

如果用户输入任何特殊字符，则会显示一条消息.
我该怎么做.请帮助

I have a field userId where i want validation check for special charaters. i want to restrict user to input any special character.

if user input any special character then a message display.
How can i do it. Please help

推荐答案

您可以在ajax工具包中使用正则表达式验证器或已过滤的文本框扩展器....

You can use Regular expression validator or filtered textbox extender in ajax toolkit....

我建​​议您可以使用正则表达式验证器控件.

参见:
http://msdn.microsoft.com/en-us/library/ff650303.aspx [ ^ ]

I would suggest you to use a Regular Expression Validator control.

See:
http://msdn.microsoft.com/en-us/library/ff650303.aspx[^]

而不是限制特殊字符... u只能输入数字或字符.这很容易.

有关更多信息，请参见此链接

http://www.tizag.com/javascriptT/javascriptform.php [

instead of restricting special characters...u can allow to enter only numbers or characters..that would be easy.

see this link for more info

http://www.tizag.com/javascriptT/javascriptform.php[^]

这篇关于特殊字符检查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！