This documentation is archived and is not being maintained.

Context Class

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.

Defines an environment for the objects that are resident inside it and for which a policy can be enforced.

Namespace:  System.Runtime.Remoting.Contexts
Assembly:  mscorlib (in mscorlib.dll)

<ComVisibleAttribute(True)> _
Public Class Context
Dim instance As Context

A context is an ordered sequence of properties that define an environment for the objects resident inside it. Contexts get created during the activation process for objects that are configured to require certain automatic services, such as synchronization, transactions, just-in-time activation, security, and so on. Multiple objects can live inside a context.

Classes are marked with an instance of the ContextAttribute class, which provides the usage rules. Whenever a new object is instantiated, the .NET Framework finds a compatible or creates a new instance of the Context class for the object. Once an object is placed in a context, it stays in it for life. Classes that can be bound to a context are called context-bound classes. When accessed from another context, such classes are referenced directly by using a proxy. Any call from an object in one context to an object in another context will go through a context proxy and be affected by the policy that the combined context properties enforce.

A new object's context is generally chosen based on meta-data attributes on the class. This mechanism is extensible through custom attributes. These are known as static-context properties, which are compiled into the class meta-data. Dynamic-context properties (also known as configuration properties) can be applied and configured by administrators.

For more information on contexts, see [<topic://cpconboundariesprocessesapplicationdomainscontexts>].


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0