New Post: Prism-MVVM-EF: Master-Details Relationship using Navigation Property

Hi,
Sorry adami this is not my case and not my goal.
My goal is how to mirror the master details relationship or the hierarchy exist in real work into my application, starting from
the database (foreign keys) to EDM (navigation property) to Service (detail is collection inside the master service) to Model (detail is collection of models inside the master model) to View Model (detail is a collection of models or ViewModel inside the master view model) up to the view where different details views are contained in several tabs nested inside the master user control. then i should be able to apply CRUD operations on these details tables. I don't know how to do this w/o violating Prism and MVVM rules.
To be more specific my problem is how to model the master - details relationship in the view model in conformance
with Prism and MVVM rules and allowing CRUD operations in details views withing master view?
sorry if i can't explain my target clearly.