Help me with Data Visualization

I want to basically output the list of processes the system is running along with t开发者_如何学Gohe memory consumption of the process into a pie chart.

I have looked at the Pie Series control in WPF but I don't know how it works, I set it's binding to an observable collection but nothing is output.

Can anyone guide me here?

Thanks.

Here is nice article by "Colin Eberhardt" in Code Project. I think it will match your requirement. You can customize it.

PieChart