Pie graph, bar graph

Hi, I'm making a little program that should display information in the form of a pie graph and a bar graph. If there are any people who know some tricks to make simple bar graphs, with an X and Y axis, please tell me. If I start looking into it myself I could come up with a hacky solution for the bar graph, using some sort of boxes (textbox, groupbox, whatever) and fiddle with their width and background color, but I would like a better solution if it exists.

For the pie graph, I'm totally clueless how to do that, and I'm afraid I'll have to use some pretty complicated methods, but I'm not sure where to start. If anyone knows, please introduce me to a place to start looking, or some good tutorials, as i've found none. I did find some stuff about drawing pie graphs in asp.NET, but I don't think I can use that, or can I?

Any help would be greatly appreciated...