My requirement is to validate the SSN in Save_Click event. NOT in "Onblur" event. I also have "Add Child" button using which I'm adding new Repeater.. So I can add N number of children before clicking on save button. And each repeater is having SSN1, SSN2 and SSN3 textboxes that I need to validate. Thanks for the replies. Ravi
Regards, Ravi K. Kalyan