I have a bar chart that I have been able to succesfully databind. But there is one more part of the requirement. They want to be able to click on one of the pie pieces and go to a separate page which gives details of the segment selected. Currently the pie piece has the number and the label has the category. How can I on click of the segment determine which category I was on so I can build out the necessary url to redirect to? Or do I need to do something on the prepaint event?