This documentation is archived and is not being maintained.

Extending Metadata Using Attributes 

The common language runtime allows you to add keyword-like descriptive declarations, called attributes, to annotate programming elements such as types, fields, methods, and properties. Attributes are saved with the metadata of a Microsoft .NET Framework file and can be used to describe your code to the runtime or to affect application behavior at run time. While the .NET Framework supplies many useful attributes, you can also design and deploy your own.

In This Section

Attributes Overview

Provides an overview of attributes and how they are used in the .NET Framework.

Applying Attributes

Describes how to apply an attribute to an element of your code.

Writing Custom Attributes

Describes how to write your own custom attributes.

Retrieving Information Stored in Attributes

Describes how to retrieve custom attributes.

Related Sections

Metadata and Self-Describing Components

Provides an overview of metadata and describes how it is implemented in a .NET Framework portable executable (PE) file.

How to: Load Assemblies into the Reflection-Only Context

Explains how to retrieve custom attribute information in the reflection-only context.