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)

Understanding C# basics

To learn C#, you will need to create some simple applications. To avoid overloading you with too much information too soon, the chapters in the first part of this book will use the simplest type of application: a console application.

Let's start by looking at the basics of the grammar and vocabulary of C#. Throughout this chapter, you will create multiple console applications, with each one showing a feature of the C# language.

  1. If you've completed Chapter 1, Hello, C#! Welcome, .NET!, then you will already have a Code folder in your user folder. If not, then you'll need to create it.
  2. Create a subfolder named Chapter02, with a sub-subfolder named Basics.
  3. Start Visual Studio Code and open the Chapter02/Basics folder.
  4. In Visual Studio Code, navigate to View | Terminal, and enter the following command:
    dotnet new console
  5. In EXPLORER, click the Program.cs file, and then click on Yes to add the missing required assets...