Book Image

C# 8.0 and .NET Core 3.0 – Modern Cross-Platform Development - Fourth Edition

By : Mark J. Price
Book Image

C# 8.0 and .NET Core 3.0 – Modern Cross-Platform Development - Fourth Edition

By: Mark J. Price

Overview of this book

In C# 8.0 and .NET Core 3.0 – Modern Cross-Platform Development, Fourth 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 new chapters on Content Management Systems (CMS) and machine learning with ML.NET. The book covers all the topics you need. Part 1 teaches the fundamentals of C#, including object-oriented programming, and new C# 8.0 features such as nullable reference types, simplified switch pattern matching, and default interface methods. Part 2 covers the .NET Standard APIs, such as managing and querying data, monitoring and improving performance, working with the filesystem, async streams, serialization, and encryption. Part 3 provides examples of cross-platform applications you can build and deploy, such as web apps using ASP.NET Core or mobile apps using Xamarin.Forms. The book introduces three technologies for building Windows desktop applications including Windows Forms, Windows Presentation Foundation (WPF), and Universal Windows Platform (UWP) apps, as well as web applications, web services, and mobile apps.
Table of Contents (21 chapters)

Using Razor class libraries

Everything related to a Razor page can be compiled into a class library for easier reuse. With .NET Core 3.0 and later this can now include static files. A website can either use the Razor page's view as defined in the class library or override it.

  1. Create a subfolder in PracticalApps named NorthwindEmployees.
  2. In Visual Studio Code, add the NorthwindEmployees folder to the PracticalApps workspace.
  3. Navigate to Terminal | New Terminal and select NorthwindEmployees.
  4. In Terminal, enter the following command to create a Razor Class Library project: dotnet new razorclasslib
  5. Edit NorthwindEmployees.csproj, and add a reference to the NorthwindContextLib project, as shown in the following markup:
      <ProjectReference Include=
        "..\NorthwindContextLib\NorthwindContextLib.csproj" />
  6. In Terminal, enter the following command to restore packages and compile the project: dotnet build
  7. ...