UndoManager.Undo() Exception

GoXam
1
  • Hi walter



    in my project, i tried

    UndoManager.Undo();

    but, i got some error.

    --------------------------------------------------

    ChangedModelState did not handle ModelChange.ChangedNodeCategory



    my test step

    ----------------

    // Make NodeTemplate A, B



    step1 :

    MyNode : GraphLinksModelNodeData

    MyNode node = UseDiagram.SelectedNode.Data as MyNode

    Debug.WriteLine(node.Category); //<== Category value … “B”

    step2 :

    // change Category value

    node.Category = “A”;

    step3 :

    myDiagram.Model.UndoManager.Undo();

    exception raise!!!



    i didn’t understand this error



    please help!!!



    use version : 1.1.8.4, Silverlight 4
2

That’s a bug. Try the following DLL:
(I have deleted the obsolete kit reference – please use the latest.)

3

Thanks a lot!! It works great now!