Book Image

C# 9 and .NET 5 – Modern Cross-Platform Development - Fifth Edition

By : Mark J. Price
Book Image

C# 9 and .NET 5 – Modern Cross-Platform Development - Fifth Edition

By: Mark J. Price

Overview of this book

In C# 9 and .NET 5 – Modern Cross-Platform Development, Fifth Edition, expert teacher Mark J. Price gives you everything you need to start programming C# applications. This latest edition uses the popular Visual Studio Code editor to work across all major operating systems. It is fully updated and expanded with a new chapter on the Microsoft Blazor framework. The book’s first part teaches the fundamentals of C#, including object-oriented programming and new C# 9 features such as top-level programs, target-typed new object instantiation, and immutable types using the record keyword. Part 2 covers the .NET APIs, for performing tasks like managing and querying data, monitoring and improving performance, and working with the file system, async streams, serialization, and encryption. Part 3 provides examples of cross-platform apps you can build and deploy, such as websites and services using ASP.NET Core or mobile apps using Xamarin.Forms. The best type of application for learning the C# language constructs and many of the .NET libraries is one that does not distract with unnecessary application code. For that reason, the C# and .NET topics covered in Chapters 1 to 13 feature console applications. In Chapters 14 to 20, having mastered the basics of the language and libraries, you will build practical applications using ASP.NET Core, Model-View-Controller (MVC), and Blazor. By the end of the book, you will have acquired the understanding and skills you need to use C# 9 and .NET 5 to create websites, services, and mobile apps.
Table of Contents (23 chapters)

Building an entity data model for Northwind

Practical applications usually need to work with data in a relational database or another data store. In this chapter, we will define an entity data model for the Northwind database stored in SQLite. It will be used in most of the apps that we create in subsequent chapters.

Although macOS includes an installation of SQLite by default, if you are using Windows or a variety of Linux then you might need to download, install, and configure SQLite for your operating system. Instructions to do so can be found in Chapter 11, Working with Databases Using Entity Framework Core. In that chapter, you will also find instructions for installing the dotnet-ef tool, which you will use to scaffold an entity model from an existing database.

Good Practice: You should create a separate class library project for your entity data models. This allows easier sharing between backend web servers and frontend desktop, mobile, and Blazor clients.