Hello Visala,
The referenced binding approach with category and products is considered as dynamic, because you only specify which are the fields that the Menu should use as data source, while you can any
dynamic data in there.
As an alternative, I would suggest you to bind the Menu directly to the model:
In such a manner, you can build the needed data source at server-side and pass it through the model.
Regards,
Nencho
Progress Telerik