I am working with software that has objects in the UI that have Items and sub Items, I am trying to find a way to check and see if an Item already exists, I need to be able to search through the entir...
It is possible that the particular component you are working with (the tree view) does not support an "open" architecture with TestComplete.
If you use the Object Spy built into test complete, can you see the individual items on the tree view? It is possible that they are not seperate objects as seen by test complete but values within a property list or some other non OLE compatible object.