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)

Setting up an ASP.NET Core MVC website

ASP.NET Core Razor Pages are great for simple websites. For more complex websites, it would be better to have a more formal structure to manage that complexity.

This is where the Model-View-Controller (MVC) design pattern is useful. It uses technologies similar to Razor Pages, but allows a cleaner separation between technical concerns, as shown in the following list:

  • Models: Classes that represent the data entities and view models used in the website.
  • Views: Razor files, that is, .cshtml files, that render data in view models into HTML web pages. Blazor uses the .razor file extension, but do not confuse them with Razor files!
  • Controllers: Classes that execute code when an HTTP request arrives at the web server.
  • The code usually creates a view model that may contain entity models and passes it to a view to generate an HTTP response to send back to the web browser or other client.

The best way to understand...