C # Open Source charting component

here is the C # Open source Charting component:

Nplot: http://netcontrols.org/nplot/  I think it is. NET open source lightweight is better, but not very good on real-time display charts

Graphviz (quickgraph): http://www.graphviz.org/function is very powerful, the relevant Chinese introduction can be seen Http://zh.wikipedia.org/zh/Graphviz

Zedgraph: The original question "A Flexible line graph class library in C #", the effect is good,: http://sourceforge.net/projects/zedgraph/

Graph Library: bar, line, pie three styles: Http://www.codeproject.com/Articles/23938/Graph-Library

Web Chart See Introduction: Http://baike.baidu.com/view/88169.htm?fr=aladdin

dotnetcharting:http://www.dotnetcharting.com/, not open source, the effect is very good

C # Open Source charting component