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 Razor Pages

Razor Pages allow a developer to easily mix HTML markup with C# code statements. That is why they use the .cshtml file extension.

By default, ASP.NET Core looks for Razor Pages in a folder named Pages.

Enabling Razor Pages

You will now change the static HTML page into a dynamic Razor Page, and then add and enable the Razor Pages service:

  1. In the NorthwindWeb project, create a folder named Pages.
  2. Copy the index.html file into the Pages folder.
  3. Rename the file extension from .html to .cshtml.
  4. Remove the <h2> element that says that this is a static HTML page.
  5. In Startup.cs, in the ConfigureServices method, add statements to add Razor Pages and its related services like model binding, authorization, anti-forgery, views, and tag helpers, as shown highlighted in the following code:
    public void ConfigureServices(IServiceCollection services)
  6. In Startup.cs, in the...