C# 9 and .NET 5 Modern Cross-Platform Development Fifth Edition

Build intelligent apps, websites, and services with Blazor, ASP.NET Core, and Entity Framework Core using Visual Studio Code

Mark J. Price 지음

Packt(GCO Science) 2020년 11월 10일 출간

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A comprehensive guide for beginners to learn the key concepts, real-world applications, and latest features of C# 9 and .NET 5 with hands-on exercises using VS Code

▶Book Description
In C# 9 and .NET 5 ？ Modern Cross-Platform Development, Fifth 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 a new chapter on the Microsoft Blazor framework.

The book's first part teaches the fundamentals of C#, including object-oriented programming and new C# 9 features such as top-level programs, target-typed new object instantiation, and immutable types using the record keyword. Part 2 covers the .NET APIs, for performing tasks like managing and querying data, monitoring and improving performance, and working with the file system, async streams, serialization, and encryption. Part 3 provides examples of cross-platform apps you can build and deploy, such as websites and services using ASP.NET Core or mobile apps using Xamarin.Forms.

By the end of the book, you will have acquired the understanding and skills you need to use C# 9 and .NET 5 to create websites, services, and mobile apps.

▶What You Will Learn
？ Build your own types with object-oriented programming
？ Query and manipulate data using LINQ
？ Build websites and services using ASP.NET Core 5
？ Create intelligent apps using machine learning
？ Use Entity Framework Core and work with relational databases
？ Discover Windows app development using the Universal Windows Platform and XAML
？ Build rich web experiences using the Blazor framework
？ Build mobile applications for iOS and Android using Xamarin.Forms

▶Key Features
？Explore the newest additions to C# 9, the .NET 5 class library, Entity Framework Core and Blazor
？Strengthen your command of ASP.NET Core 5.0 and create professional websites and services
？Build cross-platform apps for Windows, macOS, Linux, iOS, and Android

▶Who This Book Is For
This book is best for C# and .NET beginners, or programmers who have worked with C# in the past but feel left behind by the changes in the past few years. This book doesn't expect you to have any C# or .NET experience; however, you should have a general understanding of programming.

Students and professionals with a science, technology, engineering, or mathematics (STEM) background can certainly benefit from this book.

목차

▶TABLE of CONTENTS
Chapter 1: Hello, C#! Welcome, .NET!
Chapter 2: Speaking C#
Chapter 3: Controlling Flow and Converting Types
Chapter 4: Writing, Debugging, and Testing Functions
Chapter 5: Building Your Own Types with Object-Oriented Programming
Chapter 6: Implementing Interfaces and Inheriting Classes
Chapter 7: Understanding and Packaging .NET Types
Chapter 8: Working with Common .NET Types
Chapter 9: Working with Files, Streams, and Serialization
Chapter 10: Protecting Your Data and Applications
Chapter 11: Working with Databases Using Entity Framework Core
Chapter 12: Querying and Manipulating Data Using LINQ
Chapter 13: Improving Performance and Scalability Using Multitasking
Chapter 14: Introducing Practical Applications of C# and .NET
Chapter 15: Building Websites Using ASP.NET Core Razor Pages
Chapter 16: Building Websites Using the Model-View-Controller Pattern
Chapter 17: Building Websites Using a Content Management System
Chapter 18: Building and Consuming Web Services
Chapter 19: Building Intelligent Apps Using Machine Learning
Chapter 20: Building Web User Interfaces Using Blazor
Chapter 21: Building Cross-Platform Mobile Apps

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▶What this book covers
？ Chapter 1, Hello, C#! Welcome, .NET!, is about setting up your development environment and using Visual Studio Code to create the simplest application possible with C# and .NET. You will learn how to write and compile code on any of the supported operating systems: Windows, macOS, and Linux variants. For simplified console apps, you will see the use of the top-level program feature introduced in C# 9. You will also learn the best places to look for help.

？ Chapter 2, Speaking C#, introduces the versions of C# and has tables showing which version introduced new features, and then explains the grammar and vocabulary that you will use every day to write the source code for your applications. In particular, you will learn how to declare and work with variables of different types, and about the big change in C# 8 with the introduction of nullable reference types.

？ Chapter 3, Controlling Flow and Converting Types, covers using operators to perform simple actions on variables including comparisons, writing code that makes decisions, pattern matching in C# 7 to C# 9, repeating a block of statements, and converting between types. It also covers writing code defensively to handle errors when they inevitably occur.

？ Chapter 4, Writing, Debugging, and Testing Functions, is about following the Don't Repeat Yourself (DRY) principle by writing reusable functions using both imperative and functional implementation styles. You will also learn how to use debugging tools to track down and remove bugs, monitoring your code while it executes to diagnose problems, and rigorously testing your code to remove bugs and ensure stability and reliability before it gets deployed into production.

？ Chapter 5, Building Your Own Types with Object-Oriented Programming, discusses all the different categories of members that a type can have, including fields to store data and methods to perform actions. You will use object-oriented programming (OOP) concepts, such as aggregation and encapsulation. You will learn language features such as tuple syntax support and out variables, and default literals and inferred tuple names, as well as how to define and work with immutable types using the new record keyword, init-only properties, and with expressions introduced in C# 9.

？ Chapter 6, Implementing Interfaces and Inheriting Classes, explains deriving new types from existing ones using OOP. You will learn how to define operators and local functions, delegates and events, how to implement interfaces about base and derived classes, how to override a type member, how to use polymorphism, how to create extension methods, and how to cast between classes in an inheritance hierarchy.

？ Chapter 7, Understanding and Packaging .NET Types, introduces the versions of .NET and has tables showing which version introduced new features, and then presents .NET types that are compliant with .NET Standard, and how they relate to C#. You will learn how to deploy and package your own apps and libraries.

？ Chapter 8, Working with Common .NET Types, discusses the types that allow your code to perform common practical tasks, such as manipulating numbers and text, storing items in collections, and implementing internationalization.

？ Chapter 9, Working with Files, Streams, and Serialization, talks about interacting with the filesystem, reading and writing to files and streams, text encoding, and serialization formats like JSON and XML, including the improved functionality and performance of the System.Text.Json classes in .NET 5.

？ Chapter 10, Protecting Your Data and Applications, is about protecting your data from being viewed by malicious users using encryption, and from being manipulated or corrupted using hashing and signing. You will also learn about authentication and authorization to protect applications from unauthorized users.
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출판사 서평

▶ Preface
There are programming books that are thousands of pages long that aim to be comprehensive references to the C# language and the .NET platform.

This book is different. It is concise and aims to be a brisk, fun read that is packed with practical hands-on walkthroughs of each subject. The breadth of the overarching narrative comes at the cost of some depth, but you will find many signposts to explore further if you wish.

This book is simultaneously a step-by-step guide to learning modern C# proven practices using cross-platform .NET and a brief introduction to the main types of applications that can be built with them. This book is best for beginners to C# and .NET, or programmers who have worked with C# in the past but feel left behind by the changes in the past few years.

If you already have experience with older versions of C#, then in the first topic of Chapter 2, Speaking C#, you can review tables of the new language features and jump straight to them. If you already have experience with older versions of .NET, then in the first topic of Chapter 7, Understanding and Packaging .NET Types, you can review tables of the new platform features and jump straight to them.

I will point out the cool corners and gotchas of C# and .NET, so you can impress colleagues and get productive fast. Rather than slowing down and boring some readers by explaining every little thing, I will assume that you are smart enough to Google an explanation for topics that are related but not necessary to include in a beginner-to-intermediate guide.

You can clone solutions for the step-by-step guided tasks and exercises from the GitHub repository at the following link: https://github.com/markjprice/cs9dotnet5.

If you don't know how, then I provide instructions on how to do this using Visual Studio Code at the end of Chapter 1, Hello, C#! Welcome, .NET!.

작가정보

저자(글) Mark J. Price

Mark J. Price is a Microsoft Specialist: Programming in C# and Architecting Microsoft Azure Solutions, with over 20 years' experience. Since 1993, he has passed more than 80 Microsoft programming exams and specializes in preparing others to pass them. Between 2001 and 2003, Mark was employed to write official courseware for Microsoft in Redmond, USA. His team wrote the first training courses for C# while it was still an early alpha version. While with Microsoft, he taught "train-the-trainer" classes to get other MCTs up-to-speed on C# and .NET. Currently, Mark creates and delivers training courses for Episerver's Digital Experience Platform. Mark holds a Computer Science BSc. Hons. Degree and a Postgraduate Certificate in Education.