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

Leveraging x:Bind with events

In the previous chapter, we bound view model commands to the Command properties of the Add and Delete buttons. This works great and keeps the view model decoupled from the UI, but what happens if you need to handle an event that isn't exposed through a Command property? For this scenario, you have two options:

  • Use Binding in the view to bind to a command on the view model.
  • Use x:Bind in the view to bind directly to an event handler on the view model.

If you are planning to share view models between WinUI and WPF, binding to commands is recommended because both app models support the Binding syntax. If your view models are only going to be used in a WinUI application, you should use x:Bind. This option will provide compile-time type checking and added performance.

We want to give users of the My Media Collection application the option to double-click (or double-tap) a row on the list to view or edit its details. The new Item Details...