Book Image

Learn WinUI 3 - Second Edition

By : Alvin Ashcraft
5 (1)
Book Image

Learn WinUI 3 - Second Edition

5 (1)
By: Alvin Ashcraft

Overview of this book

WinUI 3 takes a whole new approach to delivering Windows UI components and controls and has the ability to deliver the same features across multiple versions of Windows. Learn WinUI 3 is a comprehensive introduction to WinUI and Windows apps for anyone who is new to WinUI and XAML applications. This updated second edition begins by helping you get to grips with the latest features in WinUI and shows you how XAML is used in UI development. The next set of chapters will help you set up a new Visual Studio environment, develop a new desktop project, incorporate the Model-View-ViewModel (MVVM) pattern in a WinUI project, and develop unit tests for ViewModel commands. Next, you’ll cover the basics of data access from WinUI projects with a step-by-step approach. As you advance, you’ll discover how to leverage the Fluent Design System to design beautiful WinUI applications. You’ll also explore the contents and capabilities of the Windows Community Toolkit and learn how to create cross-platform apps with markup and code from your project using Uno Platform. The concluding chapters will teach you how to build, debug, and deploy apps to the Microsoft Store. By the end of this book, you’ll have learned how to build WinUI applications from scratch and how to modernize existing desktop apps using WinUI 3 and the Windows App SDK.
Table of Contents (20 chapters)
Free Chapter
Part 1:Introduction to WinUI and Windows Applications
Part 2:Extending WinUI and Modernizing Applications
Part 3:Build and Deploy on Windows and Beyond

Implementing MVVM in WinUI applications

It’s time to start converting our project to use MVVM. To gain a thorough understanding of the MVVM pattern, we will start by building our own MVVM infrastructure. For simple applications, it doesn’t require more than a single base class:

  1. Start by adding a ViewModels folder to the project. If you are using the code from GitHub, you can either continue with your project from the previous chapter or use the Start project in the folder for this chapter.
  2. Next, add a new class to the ViewModels folder and name it BindableBase. This will be the base class for all our View Model classes in the project. It will be responsible for notifying the corresponding views of any property changes. This is accomplished by implementing the INotifyPropertyChanged interface. Let’s review the BindableBase class code, as follows:
    public class BindableBase : INotifyPropertyChanged
        public event PropertyChangedEventHandler...