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MessageProperties Class

Represents a set of properties for a message. This class cannot be inherited.

Namespace:  System.ServiceModel.Channels
Assembly:  System.ServiceModel (in System.ServiceModel.dll)

public sealed class MessageProperties : IDictionary<string, Object>, 
	ICollection<KeyValuePair<string, Object>>, IEnumerable<KeyValuePair<string, Object>>, 
	IEnumerable, IDisposable

As a message passes through the channel infrastructure, it passes through a number of logically separate processing entities. For instance, a message that is part of a reliable messaging stream can potentially pass through a MessageEncoder, a transport-level channel provider, the reliable-messaging channel provider, the streaming channel provider or any channel extensions. Sometimes these intermediaries annotate the message with the results of that processing by using the MessageProperties class. A MessageProperties instance is an annotation on a message and is stored as a set of name-to-object mappings in the Properties property of a Message instance.


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 Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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

.NET Compact Framework

Supported in: 3.5