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C# 8.0 and .NET Core 3.0 – Modern Cross-Platform Development

You're reading from   C# 8.0 and .NET Core 3.0 – Modern Cross-Platform Development Build applications with C#, .NET Core, Entity Framework Core, ASP.NET Core, and ML.NET using Visual Studio Code

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Product type Paperback
Published in Oct 2019
Publisher Packt
ISBN-13 9781788478120
Length 818 pages
Edition 4th Edition
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Author (1):
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Mark J. Price Mark J. Price
Author Profile Icon Mark J. Price
Mark J. Price
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Table of Contents (21) Chapters Close

1. Hello, C#! Welcome, .NET! FREE CHAPTER 2. Speaking C# 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. 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 Windows Desktop Apps 21. Building Cross-Platform Mobile Apps Using Xamarin.Forms

Simplifying methods

We might want two instances of Person to be able to procreate. We can implement this by writing methods. Instance methods are actions that an object does to itself; static methods are actions the type does.

Which you choose depends on what makes most sense for the action.

Good Practice: Having both the static and instance methods to perform similar actions often makes sense. For example, string has both a Compare static method and a CompareTo instance method. This puts the choice of how to use the functionality in the hands of the programmers using your type, giving them more flexibility.

Implementing functionality using methods

Let's start by implementing some functionality by using methods.

  1. Add one instance method and one static method to the Person class that will allow two Person objects to procreate, as shown in the following code:
    // static method to "multiply" 
    public static Person Procreate(Person...
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