Allow Alphabets and Numbers (AlphaNumeric) with Comma and Underscore Special characters using RegularExpression in ASP.Net

Last Reply on Nov 14, 2014 05:45 AM By Azim

Posted on Nov 14, 2014 05:38 AM

Hi,

 

I need to allow only alphanumeric characters and only comma and underscore to be entered in the textbox.

Could anyone please let me know how to do this.

 

Thanks!

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