Hi,

I have a textbox where I am accepting email address.  

ValidationExpression="(^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w{2,}$)(?!)"

How would I change it if the string must contain @hotmail.com and should not contain @hotmail.com?

Thanks in advance.

 The one containing @hotmail.com is easiest...

="(^\w+([-+.]\w+)*@hotmail.com)(?!)"

the one eliminating hotmail would be a little trickier but something like this should work...

="(^\w+([-+.]\w+)*@~(hotmail.com)(\w+([-.]\w+)*\.\w{2,}$))(?!)"

the ~() is your don't match piece...

Cheers,
AJ