Treeview Menu

Hi guys, can anyone help me find out a better tutorial on how to fill a treeview control. I’m still in the process of learning ASP.NET. By the way I attached an example content of my database.

I’m now learning on how to deal with it. For the mean time, i created a parent node, but when I click on it, it tries to create another parent node. So for example, I have this parent node name “File Management”, if I click on this parent node, another “File Management” will appear.