Building ViewModels based on nested Model Entities in WPF and MVVM Pattern

Question

I have a problem understanding how to build view models based on the following models

(I simplified the models to be clearer)

public class Hit
{
   publi         


        

Answer 1

I think I had the same problem and if you do it like "PatternViewModel with an ObservableCollection" you also get a massive impact on your performance because you start duplicating data.

My approach was to build - for your expample - a PatternViewModel with a ObservableCollection. It's no contradiction to MVVM because the view is bound to the collection.

This way you may avoid the duplication of the relationships.