This documentation is archived and is not being maintained.

EdmRelationshipNavigationPropertyAttribute Class

Attribute that indicates that the property represents a navigation property.

Namespace:  System.Data.Objects.DataClasses
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

public sealed class EdmRelationshipNavigationPropertyAttribute : EdmPropertyAttribute

The EdmRelationshipNavigationPropertyAttribute links the navigation property of a class to the navigation property of an entity type that is defined in the conceptual model.

This attribute is applied to the following types of navigation properties:

  • Properties that return an EntityCollection<TEntity> of related objects, as in the following example from the SalesOrderHeader type.

    DP ObjectServices Concepts#NavAttribCollection
  • Properties that return the value of the EntityReference<TEntity> of a related object, as in the following example from the SalesOrderDetail type.

    DP ObjectServices Concepts#NavAttribReference

When using custom data classes with an Entity Data Model (EDM), you must manually apply attributes. For more information, see Object-Entity Mapping Attributes (Entity Framework).


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

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 SP1