Is it currently possible to put other things besides the text into item type container controls? i.e., for tree i don't want a text node, i want to be able to customize what a text node really is. Maybe it's some text with an image, and a description, maybe something different. The same goes for ListBox and Drop down. For the drop-down maybe I want to show a grid in it, instead of just text, can this be done?
It is not possible to do this now. Suggest you post this on our product ideas site so people can vote on it.