I've used a tree view in my app. I want to show information about one node in a number of columns. for example name, id and phone of an employee. the treeview must have columns like a grid and must show one row for one node. please help me.
What I think you actually need is a Hierarchy Grid. You can display data in a RadGridView in a hierarchy with +- symbols to show and hide the child rows like a tree view.
Please take a look at the documentation here, have a look at the overview on Telerik TV and you can aslso find out more by looking in the demos on your PC under GridView >> Hierarchy