Hello,

I recently upgraded our project to the 5.0 beta version. But now I have a problem with the Undomanager:

If I add an item from the ShapeList with Drag&Drop, i got 2 commands in the UndoManager.History before NodeCreated is raised.
The first command is a ModifyItemCmd, the second is a AddItemCmd.
After that, several other commands can be added without problems, but if I try to undo all (until NextUndo == null), I got a null reference exception on the first cmd in the history (which is the ModifyItemCmd).

I don't know if there is a bug or if I just do this wrong. It seems to me that undoing the AddItemCmd deletes the object and the ModifyItemCmd then has a null reference.

Any ideas with that problem?

Best regards,

Alex

This version should work better:
https://mindfusion.eu/FCNetBeta.zip

Stoyan