IMPORTANT! Common Mistakes, Improvements, and Errata aka list of corrections

C# 13 and .NET 9 - Modern Cross-Platform Development Fundamentals, Ninth Edition

Repository for the Packt Publishing book titled "C# 13 and .NET 9 - Modern Cross-Platform Development Fundamentals" by Mark J. Price

What's new in this edition? You can read a detailed list of changes between the 8th and 9th editions.

If you have purchased the paperback or Kindle edition, then you can request a free PDF copy at the following link: https://www.packtpub.com/page/free-ebook.

For questions about book pricing, distribution, and so on, please contact the publisher Packt at the following email address: [email protected]

My author page on Amazon: https://www.amazon.com/Mark-J-Price/e/B071DW3QGN/

All of my books on Packt's website: https://subscription.packtpub.com/search?query=mark+j.+price

My author page on Goodreads: https://www.goodreads.com/author/show/14224500.Mark_J_Price

Chapters and code solutions

Introduction

Chapter 1 Hello C#, Welcome .NET! code/Chapter01

Language

Chapter 2 Speaking C#: code/Chapter02
Chapter 3 Controlling Flow, Converting Types, and Handling Exceptions: code/Chapter03
Chapter 4 Writing, Debugging, and Testing Functions: code/Chapter04
Chapter 5 Building Your Own Types with Object-Oriented Programming: code/Chapter05
Chapter 6 Implementing Interfaces and Inheriting Classes: code/Chapter06

Libraries

Chapter 7 Packaging and Distributing .NET Types: code/Chapter07
Chapter 8 Working with Common .NET Types: code/Chapter08
Chapter 9 Working with Files, Streams, and Serialization: code/Chapter09
Chapter 10 Working with Data Using Entity Framework Core: code/Chapter10
Chapter 11 Querying and Manipulating Data Using LINQ: code/Chapter11

Modern Web Development

Chapter 12 Introducing Modern Web Development Using .NET: code/ModernWeb
Chapter 13 Building Websites Using ASP.NET Core: code/ModernWeb/Northwind.Web
Chapter 14 Building Interactive Web Components Using Blazor: code/ModernWeb/Northwind.Blazor
Chapter 15 Building and Consuming Web Services: code/ModernWeb/Northwind.MinimalApi

Appendix and online chapter

Appendix, Answers to the Test Your Knowledge Questions.

Code solutions for Visual Studio and Visual Studio Code

Figures for all of the code solution folders.

Visual Studio Code now has an extension named C# Dev Kit that includes a solution explorer so it can better work with Visual Studio solution files. Visual Studio for Windows, Visual Studio for Mac, and Visual Studio Code + C# Dev Kit can now use the same code solution files and projects for each chapter, found here: /code.

For Visual Studio Code: To use the chapter solution files with Visual Studio Code, install the C# Dev Kit extension. Then in Visual Studio Code, open the ChapterNN folder that contains a ChapterNN.sln solution file and wait for the SOLUTION EXPLORER pane to appear at the bottom of the EXPLORER. You can drag and drop to reorder the panes to put SOLUTION EXPLORER at the top. Learn more about C# Dev Kit at the following link: https://devblogs.microsoft.com/visualstudio/announcing-csharp-dev-kit-for-visual-studio-code/

Warning! If you use both Visual Studio and Visual Studio Code to open these solutions, be aware that the build process can conflict. This is because Visual Studio has its own non-standard build server that is different from the standard build server used by .NET SDK CLI. My recommendation is to only have a solution open in one code editor at any time. You should also clean the solutions between opening in different code editors. For example, after closing the solution in one code editor, I delete the bin and obj folders before then opening in a different code editor.

Bonus content

The appendix and color figures are available to download as PDFs:

Appendix, Answers to the Test Your Knowledge Questions.
Color images of the screenshots/diagrams used in this book (coming November 2024).

Important

Corrections for typos and other mistakes and improvements like refactoring code. Useful links to other related material.

Command-Lines page lists all commands as a single line that can be copied and pasted to make it easier to enter commands at the prompt.
Book Links
Common Mistakes, Improvements, and Errata aka list of corrections
Ninth edition's support for .NET 10

Microsoft Certifications

Announcing the New Foundational C# Certification with freeCodeCamp: https://devblogs.microsoft.com/dotnet/announcing-foundational-csharp-certification/

Microsoft used to have professional exams and certifications for developers that covered skills like C# and ASP.NET. Sadly, they have retired them all. These days, the only developer-adjacent exams and certifications are for Azure or Power Platform, as you can see from the certification poster: https://aka.ms/traincertposter