MediaEntryAttribute Class

Article
05/29/2013

Signifies that the specified class is to be treated as a media link entry.

Inheritance Hierarchy

System.Object
System.Attribute
System.Data.Services.Client.MediaEntryAttribute

Namespace: System.Data.Services.Client
Assembly: Microsoft.Data.Services.Client (in Microsoft.Data.Services.Client.dll)

Syntax

'Declaration
<AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple := False, Inherited := True)> _
Public NotInheritable Class MediaEntryAttribute _
    Inherits Attribute
'Usage
Dim instance As MediaEntryAttribute

[AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple = false, Inherited = true)]
public sealed class MediaEntryAttribute : Attribute

[AttributeUsageAttribute(AttributeTargets::Class, AllowMultiple = false, Inherited = true)]
public ref class MediaEntryAttribute sealed : public Attribute

[<SealedAttribute>]
[<AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple = false, Inherited = true)>]
type MediaEntryAttribute =  
    class 
        inherit Attribute 
    end

public final class MediaEntryAttribute extends Attribute

The MediaEntryAttribute type exposes the following members.

Constructors

	Name	Description
	MediaEntryAttribute	Creates a new instance of MediaEntryAttribute.

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Properties

	Name	Description
	MediaMemberName	The name of the property on the class that holds the media, usually binary data.
	TypeId	(Inherited from Attribute.)

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Methods

	Name	Description
	Equals	(Inherited from Attribute.)
	GetHashCode	(Inherited from Attribute.)
	GetType	(Inherited from Object.)
	IsDefaultAttribute	(Inherited from Attribute.)
	Match	(Inherited from Attribute.)
	ToString	(Inherited from Object.)

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Explicit Interface Implementations

	Name	Description
	_Attribute.GetIDsOfNames	(Inherited from Attribute.)
	_Attribute.GetTypeInfo	(Inherited from Attribute.)
	_Attribute.GetTypeInfoCount	(Inherited from Attribute.)
	_Attribute.Invoke	(Inherited from Attribute.)

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Remarks

The class is treated as a media link entry, which is an AtomPub protocol for handling binary data and metadata about that binary data.

A type marked with this attribute has altered behavior when SaveChanges is called. The media property is also called a Media resource. On saving, the media property of the type denoted by the MediaMemberName property, is inserted by a POST request to the URI /<EntitySet>/$value.

After the POST, a PUT request with all the properties on the type other than the MediaMemberName property, which is binary content, are sent to the URI /<EntitySet>(<key>).

For more information about using attributes, see Extending Metadata Using Attributes.

Thread Safety

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

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