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 Blazor

Blazor lets you build shared components and interactive web user interfaces using C# instead of JavaScript. In April 2019, Microsoft announced that Blazor "is no longer experimental and we are committing to ship it as a supported web UI framework including support for running client-side in the browser on WebAssembly."

JavaScript and friends

Traditionally, any code that needs to execute in a web browser is written using the JavaScript programming language or a higher-level technology that transpiles (transforms or compiles) into JavaScript. This is because all browsers have supported JavaScript for about two decades, so it has become the lowest common denominator for implementing business logic on the client side.

JavaScript does have some issues, however. First, although it has superficial similarities to C-style languages like C# and Java, it is actually very different once you dig beneath the surface. Second, it is a dynamically typed...