I have a regularexpression validator which validates a valid email. I have two buttons on my form. Submit and undo.

On undo, we are reverting the page state to default

submit has it validationgroup set while undo doesnot have any validationgroup and CausesValidation="false".

Now when i navigate to page and enter invalid emailaddress,i directly click undo. the validator fires and stops my page from posting.however if i press tab and navigate to other control and then click undo,the validator shows error message but posts back and furthur proessing is done.

This is very strange and i want the page to postback without any error message when i click undo.how to achieve it.