特殊字符检查 [英] special character checks
本文介绍了特殊字符检查的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
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[^]
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