Book Image

C# 7 and .NET Core: Modern Cross-Platform Development - Second Edition

Book Image

C# 7 and .NET Core: Modern Cross-Platform Development - Second Edition

Overview of this book

If you want to build powerful cross-platform applications with C# 7 and .NET Core, then this book is for you. First, we’ll run you through the basics of C#, as well as object-oriented programming, before taking a quick tour through the latest features of C# 7 such as tuples, pattern matching, out variables, and so on. After quickly taking you through C# and how .NET works, we’ll dive into the .NET Standard 1.6 class libraries, covering topics such as performance, monitoring, debugging, serialization and encryption. The final section will demonstrate the major types of application that you can build and deploy cross-device and cross-platform. In this section, we’ll cover Universal Windows Platform (UWP) apps, web applications, mobile apps, and web services. Lastly, we’ll look at how you can package and deploy your applications so that they can be hosted on all of today’s most popular platforms, including Linux and Docker. By the end of the book, you’ll be armed with all the knowledge you need to build modern, cross-platform applications using C# and .NET Core.
Table of Contents (24 chapters)
C# 7 and .NET Core: Modern Cross-Platform Development - Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Raising and handling events


Methods are often described as actions that an object can do. For example, a List class can add an item to itself or clear itself.

Events are often described as actions that happen to an object. For example, in a user interface, Button has a Click event, click being something that happens to a button.

Another way of thinking of events is a way of exchanging messages between two objects.

Calling methods using delegates

You have already seen the most common way to call or execute a method: use the dot syntax to access the method using its name. For example, Console.WriteLine tells the Console type to write out the message to the console window or terminal.

The other way to call or execute a method is to use a delegate. If you have used languages that support function pointers, then think of a delegate as being a type-safe method pointer. In other words, a delegate is the memory address of a method that matches the same signature as the delegate so that it can be safely...