Hi Linn.

>I'm setting the selecteditem property in the mousedown event but it seems like only the parent nodes are being selected.

Why do that? When the user clicks on a node, it automatically becomes the selected node.

To prevent drag and drop of certain nodes, you could check something about the selected node in the code where you start your drag and drop and don't start the drag operation for certain types of nodes. For example, perhaps the key you assign to each node has some character in it indicating the type of node (eg. parent node keys start with "P").

Doug