Book Image

Learn WinUI 3.0

By : Alvin Ashcraft
5 (1)
Book Image

Learn WinUI 3.0

5 (1)
By: Alvin Ashcraft

Overview of this book

WinUI 3.0 takes a whole new approach to delivering Windows UI components and controls, and is able to deliver the same features on more than one version of Windows 10. Learn WinUI 3.0 is a comprehensive introduction to WinUI and Windows apps for anyone who is new to WinUI, Universal Windows Platform (UWP), and XAML applications. The book begins by helping you get to grips with the latest features in WinUI and shows you how XAML is used in UI development. You'll then set up a new Visual Studio environment and learn how to create a new UWP project. Next, you'll find out how to incorporate the Model-View-ViewModel (MVVM) pattern in a WinUI project and develop unit tests for ViewModel commands. Moving on, you'll cover the Windows Template Studio (WTS) new project wizard and WinUI libraries in a step-by-step way. As you advance, you'll discover how to leverage the Fluent Design system to create beautiful WinUI applications. You'll also explore the contents and capabilities of the Windows Community Toolkit and learn to create a new UWP user control. Toward the end, the book will teach you how to build, debug, unit test, deploy, and monitor apps in production. By the end of this book, you'll have learned how to build WinUI applications from scratch and modernize existing WPF and WinForms applications using WinUI controls.
Table of Contents (20 chapters)
1
Section 1: Introduction to WinUI and Windows Applications
8
Section 2: Extending WinUI and Modernizing Applications
13
Section 3: Build and Deploy on Windows and Beyond

Managing application state with app life cycle events

Before working with data in any application, it is important to understand the application life cycle for the target application platform. We have touched on these concepts briefly, but now, it's time to take a deeper dive into the Windows application life cycle for WinUI on UWP applications.

Exploring Windows application life cycle events

WinUI on UWP applications have a different set of life cycle events than Win32 applications. Win32 applications are either running or they're not. There are several events that occur while launching and shutting down WPF and WinForms applications:

Figure 6.1 – Win32 application life cycle events

Note

We won't go into the details here, as our primary focus is building WinUI on UWP applications. However, the two WPF events that fall outside of the launch and close their sequences are as follows:

a. FrameworkElement.Unloaded: This event fires...