Validation..

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Hi all ...

I want to know how to stop the button_click event if the email id in textbox is given invalid.
i am using regular expression validator but it is only showing that invalid emailid but button click is happening and that invalid email is storing in database.

Please send me the help...

Thanks
Nikhil

Posted 26-Mar-10 5:23am

Nikhil Nitesh Thakur

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Sandeep Mewara · Answer 1 · 2010-03-26T05:56:00

Probably you must be checking the validation onClientClick of button control. This executes before server side event. But when you check the validation, you need to make sure the execution is stopped by setting return false properly.

something like:

HTML

onClientClick = if(InValid(someEmail)) return false;

JavaScript

function InValid(checkEmail)
{
 // use your logic here and return true or false accordingly. 
}