Book Image

C# 12 and .NET 8 – Modern Cross-Platform Development Fundamentals - Eighth Edition

By : Mark J. Price
4.6 (14)
Book Image

C# 12 and .NET 8 – Modern Cross-Platform Development Fundamentals - Eighth Edition

4.6 (14)
By: Mark J. Price

Overview of this book

This latest edition of the bestselling Packt series will give you a solid foundation to start building projects using modern C# and .NET with confidence. You'll learn about object-oriented programming; writing, testing, and debugging functions; and implementing interfaces. You'll take on .NET APIs for managing and querying data, working with the fi lesystem, and serialization. As you progress, you'll explore examples of cross-platform projects you can build and deploy, such as websites and services using ASP.NET Core. This latest edition integrates .NET 8 enhancements into its examples: type aliasing and primary constructors for concise and expressive code. You'll handle errors robustly through the new built-in guard clauses and explore a simplified implementation of caching in ASP.NET Core 8. If that's not enough, you'll also see how native ahead-of-time (AOT) compiler publish lets web services reduce memory use and run faster. You'll work with the seamless new HTTP editor in Visual Studio 2022 to enhance the testing and debugging process. You'll even get introduced to Blazor Full Stack with its new unified hosting model for unparalleled web development flexibility.
Table of Contents (18 chapters)

10 Working with Data Using Entity Framework Core

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This chapter is about reading from and writing to relational data stores, such as SQLite and SQL Server, by using the object-to-data store mapping technology named Entity Framework Core (EF Core).This chapter will cover the following topics:

  • Understanding modern databases
  • Setting up EF Core in a .NET project
  • Defining EF Core models
  • Querying EF Core models
  • Loading and tracking patterns with EF Core
  • Modifying data with EF Core

Understanding modern databases

Two of the most common places to store data are in a Relational Database Management System (RDBMS), such as SQL Server, PostgreSQL, MySQL, and SQLite, or in a NoSQL database such as Azure Cosmos DB, Redis, MongoDB, and Apache Cassandra.Relational databases were invented in the 1970s. They are queried with Structured Query Language (SQL). At the time, data storage costs were high, so they reduced data duplication as...