have problem in reading an object from treeview

What Ryan said.

Not all tree/list type selectors work properly when addressed directly by text values. You may need to do a bit of searching and evaluating of properties in order to determine the index numbers required.

I have some grids, trees, lists and menus that require a little "pre-work" along these lines.

Not all controls make life simple for you. Same with devs. Combine the two? .........................................