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System.ComponentModel.DataAnnotations Namespace

[WCF RIA Services Version 1 Service Pack 2 is compatible with either .NET framework 4 or .NET Framework 4.5, and with either Silverlight 4 or Silverlight 5.]

Provides attribute classes that are used to define metadata for entity classes.

  Class Description
Public class AuthorizationAttribute Serves as base class for classes that are used to control authorization through custom metadata.
Public class AuthorizationContext Describes the context in which an authorization is being performed.
Public class AuthorizationResult Contains the results of an authorization request.
Public class CompositionAttribute Indicates that a member represents an association that is part of a compositional hierarchy.
Public class RoundtripOriginalAttribute When applied to a member, this attribute indicates that the original value of the member should be sent back to the server when the object is updated. When applied to a class, the attribute gets applied to each member of that class.
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