Interview Question in Visual Studio 2005


 

Interview Question :: A voting system--- asp.net

I'm creating a voting system..but the problem is when a user can press the button of votes several times before the page is posted to the server, so it keeps adding the votes to the item being voted. I don't know how to solve this problem?
I mean what type of button can I use so the user doesn't keep pressing the button several times to add votes?

I'm currently using a link button (Visual studio.net 2005) what other control button can I use to solve this so when the user presses it, it only counts 1 vote for the selected item??

thanks
by ksk