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 mobile apps using Xamarin.Forms

We will build a mobile app that runs on either iOS or Android for managing customers in Northwind.

Good Practice: If you have never run Xcode, run it now until you see the Start window to ensure that all its required components are installed and registered. If you do not run Xcode, then you might get errors with your projects later in Visual Studio for Mac.

Adding Android SDKs

To target Android, you must install at least one Android SDK. A default installation of Visual Studio for Mac already includes one Android SDK, but it is often an older version to support as many Android devices as possible.

To use the latest features of Xamarin.Forms, you must install a more recent Android SDK. You might also have to set the paths on the Locations tab:

  1. In macOS, start Visual Studio for Mac and navigate to Visual Studio | Preferences.
  2. In Preferences, navigate to Projects | SDK Locations | Android...