WPF MVVM: Binding a different ViewModel to each TabItem?

Question

I have a main window with a tab control containing 2 tabItems:

I currently

Answer 1

You can indeed add the view models for your tabs to a main view model. You can then bind to the child view models in the XAML for your tabs.

Say that you have three viewmodels: MainViewModel, Tab1ViewModel, and Tab2ViewModel. On your MainViewModel you keep a collection of your tab viewmodels:

class MainViewModel
{
    ObservableCollection