RegularExpressionValidator accept selected characters

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I want to validate the textbox at client side and it must contain any alphabet or number or _ or -. So to do that I wrote like this

ValidationExpression="^[0-9a-zA-Z_\-]$"

but Its not working as I want...

PS : not good in REGEX :(

Posted 1-Jan-10 4:41am

Xmen Real

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2 solutions

Solution 2

I recommend: http://www.ultrapico.com/Expresso.htm[^]

It's free too!

Nick

Posted 1-Jan-10 5:16am

Nicholas Butler

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AspDotNetDev · Accepted Answer · 2010-01-01T04:54:00

Solution 1

This is the regex you want:

^[0-9a-zA-Z_\-]+$

Notice the "+". That means "1 or more of the preceeding". You might want to use "*" instead, which means "0 or more of the preceeding" (that would match an empty string).

Posted 1-Jan-10 4:54am

AspDotNetDev