Hi Palli,
Now I better understand, thanks for the clarification.
Let my sell the idea to other users and explain more :
My toughts were more to have the same kind of features like what has been done with the Listview. Having the possibility to add a panel in the tree instead of the classical Treenode.
So imagine expanding the tree would keep a hierarchical display(which is the treeview function), but the tree could be composed of any Treenode or control or usercontrol(contained in the panel) pertaining to the tree level at which you are working. You even could change the subtree displayed items based on what the user does inside the TreePanel without resorting to another control on the form (today a treenode only allows expand/collaps,click/rightclick and drag actions).
The UI would then be like what has been done for the listview in details view. For exemple, in the listview clicking on a button in the row inserts a panel underneath the row. Here expanding the node would display the next node level which could be a treeNode(s) or TreePanel(s) or a mix of both.
I can be wrong, but I presume it could be a wave maker like the panelitem implemented in the listview.
Yes, I aggree, it could also be a completely new control if you don't want to change the standards.
The fact that I'm the only one requesting it doesn't mean it's not a wanted feature, could also be that nobody thinked about it or realize what crazy things could be done in term of user interface. May be could be interesting to debat about it.
Thanks for the good support.
Regards.