How do you bind a ComboBox's SelectedItem to an object that is a copy of an item from ItemsSource?

Question

I\'m using the MVVM pattern with WPF and have run into a problem, which I can simplify to the following:

I have a CardType model.

public class CardTy         


        

Answer 1

You can use SelectedValue and SelectedValuePath:

Where ProductId is a int property with NotifyPropertyChanged.

Read a great explanation here: Difference between SelectedItem, SelectedValue and SelectedValuePath