Getting a node item x, y position

Hi Jake
How I can get CollapsingRecordNodeItem’s position relative to the screen.I want to show a palette or windows form just below the CollapsingRecordNodeItem.



and then PointToScreen, I think.

How can I use it inside of CollapsingRecordNodeItem? is there any sample in this regard?

and how I can put an event called ListChanged in CollapsingRecordNodeItemList. This event should be fired when user drag & drops an item

Answered here