How do i set the diagram view behavior to select only? I need to prevent user deleting, or altering a node or link and prevent user from adding new node or link.

I tried the following:

    Private Sub Diagram_NodeStartModifying(ByVal sender As Object, ByVal e As MindFusion.Diagramming.NodeValidationEventArgs) Handles Diagram.NodeStartModifying
       e.Cancel = True
    End Sub

but this still allowed a user to delete. So I added this as well:

    Private Sub Diagram_NodeDeleting(ByVal sender As Object, ByVal e As MindFusion.Diagramming.NodeValidationEventArgs) Handles Diagram.NodeDeleting
       e.Cancel = True
    End Sub

But this causes a crash.

My aim is to allow a user to select nodes only (not links) and to raise my own event from this selection, but prevent a user from moving, modifying or deleting a node.

Perfect thank you.