Book Image

Learn C# Programming

By : Marius Bancila, Raffaele Rialdi, Ankit Sharma
5 (1)
Book Image

Learn C# Programming

5 (1)
By: Marius Bancila, Raffaele Rialdi, Ankit Sharma

Overview of this book

The C# programming language is often developers’ primary choice for creating a wide range of applications for desktop, cloud, and mobile. In nearly two decades of its existence, C# has evolved from a general-purpose, object-oriented language to a multi-paradigm language with impressive features. This book will take you through C# from the ground up in a step-by-step manner. You'll start with the building blocks of C#, which include basic data types, variables, strings, arrays, operators, control statements, and loops. Once comfortable with the basics, you'll then progress to learning object-oriented programming concepts such as classes and structures, objects, interfaces, and abstraction. Generics, functional programming, dynamic, and asynchronous programming are covered in detail. This book also takes you through regular expressions, reflection, memory management, pattern matching, exceptions, and many other advanced topics. As you advance, you'll explore the .NET Core 3 framework and learn how to use the dotnet command-line interface (CLI), consume NuGet packages, develop for Linux, and migrate apps built with .NET Framework. Finally, you'll understand how to run unit tests with the Microsoft unit testing frameworks available in Visual Studio. By the end of this book, you’ll be well-versed with the essentials of the C# language and be ready to start creating apps with it.
Table of Contents (20 chapters)

Chapter 16

  1. The global.json file is used to determine which SDK will be used in a given directory tree. You can create this file in the solution root folder (or any parent folders) by using the dotnet new globaljson command and editing it manually to match one of the versions returned by the dotnet --info command.
  2. The Path.Combine method is the best way to concatenate paths on both Windows and Linux, both of which use different path separators. This method is also very convenient to avoid mistakes when concatenating relative paths and doubling or omitting the separators.
  3. Libraries conforming to the .NET Standard specification are binary compatible with any framework supporting it. When you need to share code among different frameworks, verify which is the most recent version of .NET Standard supported by them and create a library that uses it. If the APIs you need to use are not supported by the required version of .NET Standard, you can change strategy and create separate...