For my application, it would be helpful if there was a operational mode where the +/- buttons mouseover and open/close nodes when clicked.
Currently they do nothing, which is not the way treeview controls normally work.
I would prefer instead that clicking the labels would select the node, but NOT open the node up to retrieve its children. You would HAVE to use the +/- buttons to open nodes.
AFAIK, none of the demos show this, so I am guessing that this is not supported.
I can live with the current behavior as there is a lot of other things I really like about this control. But I'm pretty sure many other developers would like to have this operational mode if it can be added or created with a little client-side scripting.