Help with a strange error

[stevenroman760]

Hello all,

I'm back to playing with drag and drop but this time in a tree view. When dropping I get a strange message saying COMException "No installed components were detected". This code works when rendering the tree view initially just not when dragging a new item from one node to another. Could someone give me some direction on what is going on? The exception occurs in AddItems in TreeView.cs in my custom controls library.

https://github.com/stevenroman760/PublicRepo.git

Thank You,
Steven