Programmingly Change treeview indexes

[Ronni Marker]

I have a Treeview where I want to programmingly change index, but aparently that is a challenge that is more than I can do on my own. My treeview looks like this Node1(Groups) +Child1 +Child2 +Child3 Node2(New node to insert) Node3(Search Result) Above is the wanted treeview layout. I have manually added Node1 with child nodes, and Node3. Now I wanted to add the node, as in this example called Node2, but how do i add this node, sort the Node rows and still make sure that Node1 stay in top and Node3 always is at the end? Any taker on this idea? I had initially thought to change treeview1.nodes["Node1"].index = 0 and treeview.nodes["Node3"].index = treeview1.lastindex, but that would not work, as index is read only.

[Lost User]

don't use Add, but use InsertAt

[Ronni Marker]

Ofcause! Thanks buddy. Is there any way to move a node to a specific index? ie when I do a sort, I can't "lock" some nodes, so have to move them back to the index location again.

[Dan Mos]

Create a temporary treeNode, set it to the one you want to move, remove it from the old location and insert it at the desired location. OK heres a posible pseudo code/steps:

1. Create a temp TreeNodeCollection :
   TreeNodeCollection tmp = (TreeNodeCollection)treeView1.Nodes["myNode"].Clone(); //or
   TreeNodeCollection tmp = (TreeNodeCollection)treeView1.Nodes[idx].Clone();

2. Remove the node from the old location
   treeView1.Nodes.RemoveAt(idx);

3. Insert it at the desired location
   treeView1.Nodes.Insert(desired_Idx, tmp[0]);
   //also you could use a for/foreach to insert the childnodes of the removed node if any