I'm looking for a powerful tree control for my new questionnaire
application, and the best I have seen so far appears to be the Developer
Express toolset, but they don't release an IDE version for testing!
It seems incredible that a company expects people to invest hundreds of
dollars in a product they can't test in-situ.
Somehow, a precompiled demo application is not quite what I expect for a
development tool.
Does anyone have much experience of this product?

Cheers,
iGadget