I need to modify three things with the TreeViewAdv's Drag and Drop but am unsure how to do so. My TreeViewAdv has only two levels of nodes, Parent and Child, which are represented by different classes.
I need to:
1) disallow users from dragging a Parent into another Parent but allow reordering Parents
2) disallow users from dragging Child nodes onto the Parent level but allow reordering Children within the same Parent and dragging Children into other Parents
3) choose between moving or copying a Child node to another Parent or canceling the entire drag/drop action based on a user choice
Thanks!