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C# 13 and .NET 9 – Modern Cross-Platform Development Fundamentals

You're reading from   C# 13 and .NET 9 – Modern Cross-Platform Development Fundamentals Start building websites and services with ASP.NET Core 9, Blazor, and EF Core 9

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Product type Paperback
Published in Nov 2024
Publisher Packt
ISBN-13 9781835881224
Length 828 pages
Edition 9th Edition
Languages
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Toc

Table of Contents (18) Chapters Close

Preface 1. Hello, C#! Welcome, .NET! 2. Speaking C# FREE CHAPTER 3. Controlling Flow, Converting Types, and Handling Exceptions 4. Writing, Debugging, and Testing Functions 5. Building Your Own Types with Object-Oriented Programming 6. Implementing Interfaces and Inheriting Classes 7. Packaging and Distributing .NET Types 8. Working with Common .NET Types 9. Working with Files, Streams, and Serialization 10. Working with Data Using Entity Framework Core 11. Querying and Manipulating Data Using LINQ 12. Introducing Modern Web Development Using .NET 13. Building Websites Using ASP.NET Core 14. Building Interactive Web Components Using Blazor 15. Building and Consuming Web Services 16. Epilogue 17. Index

Pattern matching with objects

In Chapter 3, Controlling Flow, Converting Types, and Handling Exceptions, you were introduced to basic pattern matching. In this section, we will explore pattern matching in more detail.

Pattern-matching flight passengers

In this example, we will define some classes that represent various types of passengers on a flight, and then we will use a switch expression with pattern matching to determine the cost of their flight:

  1. In the PacktLibraryNet2 project/folder, add a new file named FlightPatterns.cs.
  2. If you use Visual Studio, in FlightPatterns.cs, delete the existing statements, including the class named FlightPatterns, because we will define multiple classes, and none match the name of the code file.
  3. In FlightPatterns.cs, add statements to define three types of passenger with different properties, as shown in the following code:
// All the classes in this file will be defined in the following namespace.
namespace Packt.Shared;
public class Passenger...
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