Copies the scalar values from the supplied object into set of original values for the object in the ObjectContext that has the same key.
Assembly: System.Data.Entity (in System.Data.Entity.dll)
public TEntity ApplyOriginalValues<TEntity>( string entitySetName, TEntity originalEntity ) where TEntity : class
The type of the entity object.
- Type: System.String
The name of the entity set to which the object belongs.
The updated object.
entitySetName or original is null.
The entity key of the supplied object is invalid or has property changes.
entitySetName is an empty string.
The method is used to apply changes that were made to objects outside the ObjectContext, such as detached objects that are received by a Web service. The method copies the scalar values from the supplied object into the object in the ObjectContext that has the same key. You can use the EntityKey of the detached object to retrieve an instance of this object from the data source. For more information, see How to: Return a Specific Object Using its Key (Entity Framework). Any values that differ from the current values of the object are marked as modified. Note, the method does not apply the current values to the related objects of originalEntity.
If you have a graph with the original values and want to apply the current values, call ApplyCurrentValues<TEntity> method.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.