I have webform with two text boxes ("login","password") and one button("do login") at top of the form for login purpose, and at middle of the form I'm gathering contact us information , I've used "Requiredfieldvalidator" control to check validity for name,email etc text boxes. My problem is whenever I press "do login" button "Requiredfieldvalidator" gets fire and gives me error "Name can not be blank.....". This error is because of two buttons sharing same form. How do I solve this problem? How do I control two buttons in same form?