Book Image

C# 9 and .NET 5 – Modern Cross-Platform Development - Fifth Edition

By : Mark J. Price
Book Image

C# 9 and .NET 5 – Modern Cross-Platform Development - Fifth Edition

By: Mark J. Price

Overview of this book

In C# 9 and .NET 5 – Modern Cross-Platform Development, Fifth Edition, expert teacher Mark J. Price gives you everything you need to start programming C# applications. This latest edition uses the popular Visual Studio Code editor to work across all major operating systems. It is fully updated and expanded with a new chapter on the Microsoft Blazor framework. The book’s first part teaches the fundamentals of C#, including object-oriented programming and new C# 9 features such as top-level programs, target-typed new object instantiation, and immutable types using the record keyword. Part 2 covers the .NET APIs, for performing tasks like managing and querying data, monitoring and improving performance, and working with the file system, async streams, serialization, and encryption. Part 3 provides examples of cross-platform apps you can build and deploy, such as websites and services using ASP.NET Core or mobile apps using Xamarin.Forms. The best type of application for learning the C# language constructs and many of the .NET libraries is one that does not distract with unnecessary application code. For that reason, the C# and .NET topics covered in Chapters 1 to 13 feature console applications. In Chapters 14 to 20, having mastered the basics of the language and libraries, you will build practical applications using ASP.NET Core, Model-View-Controller (MVC), and Blazor. By the end of the book, you will have acquired the understanding and skills you need to use C# 9 and .NET 5 to create websites, services, and mobile apps.
Table of Contents (23 chapters)

Understanding XAML

In 2006, Microsoft released Windows Presentation Foundation (WPF), which was the first technology to use XAML. Silverlight, for web and mobile apps, quickly followed, but it is no longer supported by Microsoft. WPF is still used today to create Windows desktop applications; for example, Microsoft Visual Studio 2019 is partially built using WPF.

XAML can be used to build parts of the following apps:

  • UWP apps for Windows 10 devices, Xbox One, and Mixed Reality headsets.
  • WPF apps for Windows desktop, including Windows 7 and later.
  • Xamarin.Forms apps for mobile and desktop devices, including Android, iOS, Windows, and macOS. In 2021, with the release of .NET 6, this will evolve into .NET MAUI (Multi-platform App User Interface).

Simplifying code using XAML

XAML simplifies C# code, especially when building a user interface.

Imagine that you need two or more buttons laid out horizontally to create a toolbar.

In C#, you...