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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

Defining EF Core models

EF Core uses a combination of conventions, annotation attributes, and Fluent API statements to build an entity model at runtime, which enables any actions performed on the classes to later be automatically translated into actions performed on the actual database. An entity class represents the structure of a table, and an instance of the class represents a row in that table.

First, we will review the three ways to define a model, with code examples, and then we will create some classes that implement those techniques.

Using EF Core conventions to define the model

The code we will write will use the following conventions:

  • The name of a table is assumed to match the name of a DbSet<T> property in the DbContext class, for example, Products.
  • The names of the columns are assumed to match the names of properties in the entity model class, for example, ProductId.
  • The string .NET type is assumed to be a nvarchar type in the database.
  • The int .NET type is assumed...
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