Not able to recognize WPF Objects

[sanket.p]

I am using QTP 9.5 and it is able to indentify WpfTreeView objects. However I am not able to do any operations in Tree, like selection of the any node in Tree, Expand any particular node etc. I can only Expand all nodes in Tree. I have Tree Structure as following

Node A
--> Child A
Node B
--> Child B
Node C
--> Child C

When I am using SELECT method as below, it only selects first node in tree (ALWAYS). Also I can’t select node by using name.

Code:

WpfWindow("ABC").WpfTreeView("XYZ").Select "v0;v1"

Please suggest some pointers.