ObjectStateManager.ChangeObjectState(Object, EntityState) Method

Definition

Namespace:

System.Data.Objects

Assembly:

System.Data.Entity.dll

Changes state of the ObjectStateEntry for a specific object to the specified entityState.

public:
 System::Data::Objects::ObjectStateEntry ^ ChangeObjectState(System::Object ^ entity, System::Data::EntityState entityState);

public System.Data.Objects.ObjectStateEntry ChangeObjectState (object entity, System.Data.EntityState entityState);

member this.ChangeObjectState : obj * System.Data.EntityState -> System.Data.Objects.ObjectStateEntry

Public Function ChangeObjectState (entity As Object, entityState As EntityState) As ObjectStateEntry

Parameters

entity

Object

The object for which the state must be changed.

entityState

EntityState

The new state of the object.

Returns

ObjectStateEntry

The ObjectStateEntry for the supplied entity.

Exceptions

ArgumentNullException

When entity is null.

InvalidOperationException

When the object is not detached and does not have an entry in the state manager.

-or-

When you try to change the state to Detached from any other EntityState

-or-

When state is not a valid EntityState value.

Remarks

Calling the ChangeObjectState method to change the state of an object to Deleted does not cause related objects in a constrained relationship to be deleted.

Changing the state of an object does not affect related objects in the object graph.

When you change the EntityState of an entity object entry to Modified, all the properties of the object are marked as modified, regardless of the current or original values.

When the EntityState of an entity object entry is changed to Added, Deleted, or Detached, the relationship entries for the object are also updated.