I’m creating an app and need the same data set for two tree views.
Nodes.AddRange only works with a TreeNode and the TreeNodeCollection is read-only and doesn’t have a ctor.
I first tried something like this:
TreeNode nodes = new TreeNode[treeView1.Nodes.Count];
But got this exception.
_Cannot add or insert the item ‘’ in more than one place. You must first remove it from its current location or clone it.
Parameter name: node_
Apparently we need to first clone the nodes because they are already bound to the first TreeView.
Here’s the quick and dirty (feel free to make it cleaner w/ extension method, etc)