Hi,

In my site i wanted to blacklist the XSS characte3rs '<' '>' etc.

For this i am using REgularExpressionValidator.

ValidationExpression = @"^[a-zA-Z0-9#$!@^&%. ,\+_\-[\]\(\)\*\`\;\:]+$".

But i am forced to use the black listing because i have to support unicode characters in mu controls.

Can anybody suggest me what could be the ValidationExpression.

 Are you able to validate server-side?If so a server-side whilelist is far better as it can be rigourously unit tested.

I am doing the server side validation also... but i want to validate at the client side also

Suneelkk:

I am doing the server side validation also... but i want to validate at the client side also

Hi friend,

I suggest you use "CustomValidator" to solve you problem.

To know more about CustomValidator, please check this link, the link will tell you how to validate on both site.

http://msdn.microsoft.com/de-de/library/system.web.ui.webcontrols.customvalidator.aspx

Hope it helps,

Hong Gang