TreeView usage
 

I'm trying to make a new window for harvesting data. I thought a setup like the quest journal would be a way to organize it. The journal uses a TreeView widget. But I can't figure out how to handle a tree selection. I want to show the harvest details for the selected tree item. Neither the TreeView nor the DataSourceContainer have the OnPress action. So can I not do it this way? Tree selection is not a function of the UI?

I've attached a screenshot of my starting attempt at the tree.

I've never been able to crack the code on how to get TreeView to respond. You might be able to overlay some transparent controls over the TreeView to handle interactions, but it could get very messy. You may be better off cobbling together some kind of tree structure using <Composite> or <VolumePage> elements.

Yeah, I gave up. Going a different route.