Security answer optional - Password Recovery

Aug 18, 2012 at 9:57 AM

I am using password recovery control in forgotpassword.aspx page. by default the password recovery control validates the Login id and the security question of a particular user. I want to make the security answer as optional and for a user. I will be adding another validation field as PAN number. If user forgets his security answer he can provide his PAN number to get his password. He can either give his security answer or his PAN Number. Is it possible to make Security answer as optional input?  I am using Upm Membership Provider. Is there any sample code for doing this... Helps is apprecated.