Hi,

I am getting the error saying "Cannot remove the specified item because it was not found in the specified collection".

Please let me know how to delete multiple items selected in the diagram. It is working find for all other nodes except that if I select a Group and any other node in combination I am getting the above error.

I have DelKeyAction set to MindFusion.Diagramming.DelKeyAction.DeleteSelectedItems. I am clicking on Del key after selecting two nodes.

I am using latest MindFusion.Diagramming control version 5.3.5.

Plese suggest a solution, thanks in advance.

Regards
Velidanda

NodeDeleted event is not handled in the code, removal of nodes is done in Form.ctxtMenuDelete.Click event, where the selected items are iterated and are getting removed from Diagram.Items collection.

Is this the right way of removing diagram items?

This was working fine with all other nodes but not working for the newly added DiagramGroup.

We have upgraded to use Group and I have a class DiagramGroup with a ShapeNode and Group objects and using this DiagramGroup class to draw the group and attach the nodes.

Actual issue is that when I add group and a node to the diagram and selecting both and clicking Delete button is throwing the error I mentioned in my earlier post.

Please le me know how to handle this correctly.

Error is when running ctxtMenuDelete.Click event code, I am able to debug the code in ctxtMenuDelete.Click event.

Deletion is working fine for a diagram that I am designing but if I open a diagram that is previously saved and when I am trying to select the nodes and hit Delete, getting the error.

Selected nodes are taken into another collection as below

DiagramItemCollection SelectedObjects = _fcMap.Selection.Items.Clone();

and then iterating thru selected objects as below
for (int i = 0; (i<= (SelectedObjects.Count - 1));i++)
{
MindFusion.Diagramming.DiagramItem CurOb = SelectedObjects[i];
DeleteChartObject(CurOb);
}

and in DeleteChartObject method removing the node using _fcMap.Items.Remove(CurOb);

When will NodeDeleted event has to be executed?

Implemented NodeDeleted method but not getting the control there, can I raise NodeDeleted event from code similar to NodeCreated?

Ok, got it working by removing other nodes except diagram item that has Group node first and then removed diagram items with Groups.

It was something difficult to locate the issue, NodeDeleted event was not required to be implemented.

Anyway it is working fine now, Thanks for your help.