how to show members like tree view for mlm websites..

Refer

http://www.c-sharpcorner.com/uploadfile/krishnasarala/bind-treeview-from-a-database-in-Asp-Net/

http://www.codeproject.com/Articles/13635/Create-and-Populate-Treeviews-Dynamically

http://www.codeproject.com/Articles/334773/Graphical-BinaryTrees