treeview PopulateOnDemand - parent node is nothing

[bill]

When PopulateOnDemand is true, the treeview event handler for the
TreeNodePopulate event gets the TreeNodeEventArgs as a parameter.

The TreeNodeEventArgs contains the tree node to be populated, and child
nodes can be added to it.

Why is the Parent of the node contained in TreeNodeEventArgs always equal to
nothing?

I'm not talking about the root node, but about nodes which have been added
as child nodes to the root or deeper.

 

[Guest]

Bill,
Treeview has forward only implementation of populate on demand.