TreeNodes don't get collected with weakevent solution

Question

Hi,

When I use this method http://stackoverflow.com/questions/1089309/weak-events-in-net (by Egor) to hook up a event i a inherited treenode, the tree node never gets collected, is there any speciall case with tree nodes and GC?

public class MyTreeNode : TreeNode     
{
  public MyTreeNode(Entity entity)
  {
     entity.Children.ListChanged += new ListChangedEventHandler(entityChildren_ListChanged).MakeWeak(eh => entity.Children.ListChanged -= eh);
  }
}

Entity.Children is a bindinglist.

I made tests with a destructor on MyTreeNode and invoking GC.Collect(), with the weak eventhandler the treenode never gets collected but i DOES get collected WIHTOUT the weak eventhandler.