post asp.net form

I have an aspx page. In tag i wrote action开发者_StackOverflow社区 property to some url. There is a submit button, when i press it the page is submitted. This is quite simple.... But what i will do when i have to submit that page to three different URLs upon pressing three different submit buttons? How would i handle the action property of tag for three different URLs. Can i submit form from server side?(I mean by changing action property of form dynamically). I am new to asp.net please help me as soon as possible. I will be thankful to you...

take a look at the PostBackUrl-Property as explained here: http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.button.postbackurl.aspx