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)

Packaging your libraries for NuGet distribution

Before we learn how to create and package our own libraries, we will review how a project can use an existing package.

Referencing a NuGet package

Let's say that you want to add a package created by a third-party developer, for example, Newtonsoft.Json, a popular package for working with the JavaScript Object Notation (JSON) serialization format.

  1. In Visual Studio Code, open the AssembliesAndNamespaces project.
  2. Enter the following command in Terminal:
    dotnet add package newtonsoft.json
  3. Open AssembliesAndNamespaces.csproj, and you will see the package reference has been added, as shown in the following markup:
    <Project Sdk="Microsoft.NET.Sdk">
        <PackageReference Include="newtonsoft.json"