Pie chart in asp?

How do i import system.drawing into a page.


here's what i'm looking to do. i created a page called pie chart.aspx but instead of just using image of a pie chart i want to use the system.drawings to create a pie chart with atleast 3 distributions or more like, red, green and blue or somewthing. how do i accomplish that. i tried youtubeing and google but nothing really helped. I know its suppose to be in code behind page but how??/


Thanks