Making it easier with frameworks

We can save ourselves a little effort by taking advantage of one of the many MVVM frameworks freely available on the Web.

Tip

See Appendix A, MVVM Frameworks for a list of frameworks.

We are now going to update our code to use the MVVM Light framework by following the steps mentioned next:

Tip

If you haven't downloaded the MVVM Light framework then download the framework. See Chapter 2, Introduction to MVVM for details. Also note that there is now an MVVM Light Nuget package (http://nuget.org/packages/mvvmLight) available, which would be the preferred way to install the framework..

1. Copy GalaSoft.MvvmLight.WPF4.dll to the Lib directory in the solution, as shown in the following screenshot. This assembly contains the RelayCommand class that we will be using.

   

2. Add browse reference from Northwind.ViewModel to GalaSoft.MvvmLight.WPF4.dll.

3. Delete the Command.cs file from Northwind.Application.

4. Open MainWindowViewModel.cs, add a using statement for GalaSoft.MvvmLight.Command...