Windows Presentation Foundation 4.5 Cookbook

Implementing a basic MVVM application

The MVC, MVP, and MVVM patterns comprise mostly the same parts: a model, which is the data, a view (or views) that display the data in some meaningful way and provide user interaction, and a third part that is somehow responsible for the logic behind the interactions of view and data. The exact differences between MVC and MVP are not that important (you can find a lot on these topics on the Web). MVVM could be considered a special case of MVP, where data binding is used to connect the View with the ViewModel in a very loose way. This is especially favorable for XAML-based applications, where data binding is both declarative and powerful. In this recipe, we'll move closer to MVVM by taking the previous recipe, ...