Book Image

Apps and Services with .NET 7

By : Mark J. Price
Book Image

Apps and Services with .NET 7

By: Mark J. Price

Overview of this book

Apps and Services with .NET 7 is for .NET 6 and .NET 7 developers who want to kick their C# and .NET understanding up a gear by learning the practical skills and knowledge they need to build real-world applications and services. It covers specialized libraries that will help you monitor and improve performance, secure your data and applications, and internationalize your code and apps. With chapters that put a variety of technologies into practice, including Web API, OData, gRPC, GraphQL, SignalR, and Azure Functions, this book will give you a broader scope of knowledge than other books that often focus on only a handful of .NET technologies. It covers the latest developments, libraries, and technologies that will help keep you up to date. You’ll also leverage .NET MAUI to develop mobile apps for iOS and Android as well as desktop apps for Windows and macOS.
Table of Contents (23 chapters)

Working with reflection and attributes

Reflection is a programming feature that allows code to understand and manipulate itself. An assembly is made up of up to four parts:

  • Assembly metadata and manifest: Name, assembly, file version, referenced assemblies, and so on.
  • Type metadata: Information about the types, their members, and so on.
  • IL code: Implementation of methods, properties, constructors, and so on.
  • Embedded resources (optional): Images, strings, JavaScript, and so on.

The metadata comprises items of information about your code. The metadata is generated automatically from your code (for example, information about the types and members) or applied to your code using attributes.

Attributes can be applied at multiple levels: to assemblies, to types, and to their members, as shown in the following code:

// an assembly-level attribute
[assembly: AssemblyTitle("Working with reflection and attributes")]
// a type-level attribute...