multi level nested grid for win & web apps?

is the开发者_开发百科re any free open source multi level nested grid developed using c# for windows and web apps . i need a grid which can display parent child relation ship at nth level with plus minus sign. if is available then please give me the url.

thanks in advance.

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you can find out nested grid at below mentioned url.

http://www.codeproject.com/KB/webforms/Hierarchical_Grid_View.aspx

Hope it will help.