Hi,

Check if this method helps -
https://mindfusion.eu/Forum/YaBB.pl?num=1306412889/1#1

>> I need X and Y Properties on my Nodes and (Width/Height or I set default node size)

Either that, or return coordinates from Diagram.ResolveNodePosition callback to specify position of data item. There's Arrange(VirtualizingDiagram) overload in layout classes that should let you arrange the virtual diagram too.

Another way you could approach it is consider the diagram only as a lower-level graphics view, create a VideModel class to whose properties you bind your Model data, and in the ViewModel keep a map from data items to diagram items and update the latter when data changes.

Regards,
Slavcho
Mindfusion