Up to this point, you have seen how to incorporate the MVVM architectural pattern into your applications, so that it enforces the separation between the application's user interface, or presentation layer, from the underlying data. This is done by using a class that acts as the communication layer between both the View and the ViewModel, and is connected through data bindings along with the binding context for the View, pointing to an instance of the ViewModel.
In this chapter, you will see how you can leverage what you already know about the MVVM design pattern, and we will learn how to move navigation into the ViewModels. You'll learn how to create a C# class that will act as the navigation service for our app, as well as how to update our existing WalkBaseViewModel class file. This will include a number of abstract class methods that each of our ViewModels will inherit, and in turn update the content pages to bind with...