How to make custom list levels in c#

Hope you are looking for nested list view or treeview. Here are the links to start up with.

https://www.codeproject.com/Articles/1077556/Populating-TreeView-up-to-N-Levels-in-Csharp-from

http://cleanbugs.com/item/412960/display-multilevel-of-a-using-json-and-subcategory-category-jquery.html

http://stackoverflow.com/questions/14829128/how-to-make-my-nested-listview-collapsable-and-expandable

http://www.c-sharpcorner.com/UploadFile/c5c6e2/populate-a-treeview-dynamically/

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