TreeList has an option edit: { move: true } which is drag and drop (within a single tree) but I can't for the life of me find the events for it in documentation or just fishing around. Edit, Save, and Change events don't fire on drop. Drop doesn't seem to be an event. Databound fires but there's no indication of the source or target nodes that I can see.
There had to have been some event included when this was added (apparently this 1st or 2nd quarter 2015). Without an event, I don't see how I could prevent an invalid drop. Sure - I can come up with around this by comparing some lookup to determine the changes, and then update the model... which may be what I have to do - but I'm hoping there's an event here somewhere.
Thanks for your help.
Jacques