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)

Exploring an ASP.NET Core MVC website

Let's walk through the parts that make up a modern ASP.NET Core MVC website.

Understanding ASP.NET Core MVC startup

Appropriately enough, we will start by exploring the MVC website's default startup configuration:

  1. Open the Startup.cs file.
  2. Note the read-only Configuration property that can be passed in and set in the class constructor, as shown in the following code:
    public Startup(IConfiguration configuration)
      Configuration = configuration;
    public IConfiguration Configuration { get; }
  3. Note that the ConfigureServices method adds an application database context using SQLite with its database connection string loaded from the appsettings.json file for its data storage, adds ASP.NET Core Identity for authentication and configures it to use the application database, and adds support for MVC controllers with views, as shown in the following code:
    public void ConfigureServices(IServiceCollection...