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EntityObject Class

Base class for entity types that are generated by the Entity Data Model tools.

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

[DataContractAttribute(IsReference = true)]
public abstract class EntityObject : StructuralObject, 
	IEntityWithKey, IEntityWithChangeTracker, IEntityWithRelationships

EntityObject implements the basic functionality for entity types that is required by Object Services. For more information, see Object Services Overview (Entity Framework).

Classes that work with the Entity Data Model must either inherit from EntityObject and ComplexObject or directly implement custom class interfaces. When implementing custom data classes with an Entity Data Model (EDM), we recommend that your data classes that represent entity types inherit from EntityObject. For more information, see Customizing Objects (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