ObjectContext.ApplyOriginalValues(Of TEntity) Method
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)
'Declaration Public Function ApplyOriginalValues(Of TEntity As Class) ( _ entitySetName As String, _ originalEntity As TEntity _ ) As TEntity
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 Nothing.
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(Of TEntity) method.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2