Visual STudio 2010中的ASP.net。使用下拉列表和提交按钮

I'm pretty new the Visual Studio 2010. I have a drop down list that pulls a list of data from a basic select from statement. There are only 4 choices in the drop down list.. let's say it's just apple, banana, pear, and grapes. How do I make it so when I pick apple it redirects to one page, but if I select banana it redirects to a different one? Currently I have the submit button directing to one page but how do I make it so that it dynamically changes based on the user selection?I'm pretty new the Visual Studio 2010. I have a