How to Hatch Polygon polyline using c#

[MarkJamesRogolino]

Hi, my issue is to hatch polygon polyline like this.

Could someone help me? Thanks.

[cuongtk2]

http://docs.autodesk.com/ACD/2010/ENU/AutoCAD%20.NET%20Developer%27s%20Guide/index.html?_ga=2.517711...