Hi all,

Using VS 2005, and I have a problem with removing nodes with custom images
from a treeview.

TreeView's ImageList is initially empty. First, I add a default/root image:

treeView.ImageList.Images.Add("Tree_Root", new Bitmap(Resources.Tree_Root));
treeView.ImageKey        = "Tree_Root";
treeView.SelectedImageKey= "Tree_Root";

When adding nodes, I create a custom bitmap (each node gets a different icon),
add it to the image list and assign node's ImageKey and SelectedImageKey:

Bitmap nodeBmp = new Bitmap(...);
// ... draw on bitmap ...

string    imageKey = ... // create a unique image key
treeView.ImageList.Images.Add(imageKey, nodeBmp);

newNode.ImageKey        = imageKey;
newNode.SelectedImageKey= imageKey;
...
// add the new node
treeView.Nodes[0].Nodes.Add(newNode);

This works fine. The problem occurs when removing one of these nodes that is
not the last:

TreeNode node = // get the node to be removed...

// remove the node from the tree
node.Remove();
// remove node image from the ImageList
treeView.ImageList.Images.RemoveByKey(node.ImageKey);

The problem is that after removing a node, nodes that were below it get their
images screwed up: unselected image for a node is ok, but selected image is
painted as next node's image (the last node's selected image is painted
blank). I have checked their ImageKey and SelectedImageKey properties, and
they're the same, as expected.

If I don't remove node icons from the ImageList, things work ok.

Any ideas?

Thank you,