TreeList View Unbound Mode
Nodes are stored as nested collections because the TreeListView displays data in a tree. The collection of root level nodes can be accessed via the TreeListView.Nodes property. Each node has its own collection of child nodes available via the TreeListNode.Nodes property. These child nodes have their own children, etc.
In an unbound mode, you should manually build a TREE by creating nodes (TreeListNode) and adding them to the corresponding node collections.
NOTE
Nodes can be represented by objects of different types. The only requirement is that these data objects should have common fields (columns).
#Example: How to Manually Create a Tree (Unbound Mode)
See Also