Navigation from NodeData to Model

Hi,
a simple question:
Is there a navigation property in GraphLinksModelNodeData to get the Model?
Somewhat like a Parent Property.

No, there isn’t:
http://goxam.com/2.2/helpWPF/webframe.html#Northwoods.GoWPF~Northwoods.GoXam.Model.GraphLinksModelNodeData`1_members.html

But you could add such a property.