Window Forms Pie Chart
Create simple or exploded pie charts, with a customizable threshold for inclusion in an "Other" category, and text labels and images that can be displayed within or outside of the pie in a manner that avoids overlapping. Users can click or drill down to view underlying data, explode out a section of the pie, and get information via tooltips.
The “Others” category in the Pie Chart control can be used to group the smaller data values into one slice. Use the drop-down in the Threshold Category to select a threshold value and see how the smaller slices are grouped into one slice labeled "Others".
Use the Pie Chart control to set the Radius Factor, the Exploded Radius and the Start Angle.
Pie Chart Labels
You can even customize the Label Extent and Label Position.