EntityObject Class (System.Data.Objects.DataClasses)

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This page is specific to

Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

Microsoft Visual Studio 2010/.NET Framework 4.0

.NET Framework Class Library

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)

Syntax

Visual Basic (Declaration)

<SerializableAttribute> _
<DataContractAttribute(IsReference := True)> _
Public MustInherit Class EntityObject _
    Inherits StructuralObject _
    Implements IEntityWithKey, IEntityWithChangeTracker, IEntityWithRelationships

Visual Basic (Usage)

Dim instance As EntityObject

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

Visual C++

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

JScript

public abstract class EntityObject extends StructuralObject implements IEntityWithKey, IEntityWithChangeTracker, IEntityWithRelationships

Remarks

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).

Inheritance Hierarchy

System..::.Object
System.Data.Objects.DataClasses..::.StructuralObject
System.Data.Objects.DataClasses..::.EntityObject

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.

Platforms

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.

Version Information

.NET Framework

Supported in: 3.5 SP1

Reference

EntityObject Members

System.Data.Objects.DataClasses Namespace

Other Resources

Implementing Custom Data Class Interfaces (Entity Framework)