how can email id validation perform on tab event of textbox

You can use a PageMethod to make a call out to the server to check the email address.

-Damien

Hi, dwhite

thanks for your valuable response.

the idea u have given, that is i will check latter,

currently my PL change the requirement

thanks

anup patel

If this approach works for you, please mark it as the answer.

Thanks,
-Damien