Question

Specifically what I am looking to do is make the icons for the Nodes in my System.Windows.Forms.TreeView control to throb while a long loading operation is taking place.

Answer 1

If you load each frame into an ImageList, you can use a loop to update to each frame. Example:

    bool runThrobber = true;     private void AnimateThrobber(TreeNode animatedNode)     {         BackgroundWorker bg = new BackgroundWorker();         bg.DoWork += new DoWorkEventHandler(delegate         {             while (runThrobber)             {                 this.Invoke((MethodInvoker)delegate                 {                     animatedNode.SelectedImageIndex++;                     if (animatedNode.SelectedImageIndex >= imageList1.Images.Count) > animatedNode.SelectedImageIndex = 0;                 });                 Thread.Sleep(100);             }         });         bg.RunWorkerAsync();     } 

Obviously there’s more than a few ways to implement this, but here’s the basic idea.