You're reading from C# 7.1 and .NET Core 2.0 ??? Modern Cross-Platform Development Create powerful applications with .NET Standard 2.0, ASP.NET Core 2.0, and Entity Framework Core 2.0, using Visual Studio 2017 or Visual Studio Code

Product type Hardcover

Published in Nov 2020

Publisher

ISBN-13 9781800568105

Length 822 pages

Edition 3rd Edition

Languages

Tools

.NET

Concepts

Cross Platform Mobile Development

Author (1):

Mark J. Price

View More author details

Table of Contents (23) Chapters

Preface

1. Hello, C#! Welcome, .NET!

2. Speaking C# FREE CHAPTER

3. Controlling Flow and Converting Types

4. Writing, Debugging, and Testing Functions

5. Building Your Own Types with Object-Oriented Programming

6. Implementing Interfaces and Inheriting Classes

7. Understanding and Packaging .NET Types

8. Working with Common .NET Types

9. Working with Files, Streams, and Serialization

10. Protecting Your Data and Applications

11. Working with Databases Using Entity Framework Core

12. Querying and Manipulating Data Using LINQ

13. Improving Performance and Scalability Using Multitasking

14. Introducing Practical Applications of C# and .NET

15. Building Websites Using ASP.NET Core Razor Pages

16. Building Websites Using the Model-View-Controller Pattern

17. Building Websites Using a Content Management System

18. Building and Consuming Web Services

19. Building Intelligent Apps Using Machine Learning

20. Building Web User Interfaces Using Blazor

21. Building Cross-Platform Mobile Apps

22. Index

Understanding async and await

C# 5 introduced two keywords to simplify working with the Task type. They are especially useful for the following:

Implementing multitasking for a graphical user interface (GUI).
Improving the scalability of web applications and web services.

In Chapter 16, Building Websites Using the Model-View-Controller Pattern, we will see how the async and await keywords can improve scalability in websites.

In Chapter 21, Building Cross-Platform Mobile Apps, we will see how the async and await keywords can implement multitasking with a GUI.

But for now, let's learn the theory of why these two C# keywords were introduced, and then later you will see them used in practice.

Improving responsiveness for console apps

One of the limitations with console applications is that you can only use the await keyword inside methods that are marked as async but C# 7 and earlier do not allow the Main method to be marked as async! Luckily...