ObjectStateManager.GetRelationshipManager 方法
[此頁面專屬於 Entity Framework 第 6 版。最新版本可從 'Entity Framework' NuGet 套件取得。如需 Entity Framework 的詳細資訊,請參閱 msdn.com/data/ef。]
傳回指定物件所使用的 RelationshipManager。
命名空間: System.Data.Entity.Core.Objects
組件: EntityFramework (在 EntityFramework.dll 中)
語法
'宣告
Public Overridable Function GetRelationshipManager ( _
entity As Object _
) As RelationshipManager
'用途
Dim instance As ObjectStateManager
Dim entity As Object
Dim returnValue As RelationshipManager
returnValue = instance.GetRelationshipManager(entity)
public virtual RelationshipManager GetRelationshipManager(
Object entity
)
public:
virtual RelationshipManager^ GetRelationshipManager(
Object^ entity
)
abstract GetRelationshipManager :
entity:Object -> RelationshipManager
override GetRelationshipManager :
entity:Object -> RelationshipManager
public function GetRelationshipManager(
entity : Object
) : RelationshipManager
參數
- entity
類型:System.Object
要為其傳回 RelationshipManager 的物件。
傳回值
類型:System.Data.Entity.Core.Objects.DataClasses.RelationshipManager
指定物件的 RelationshipManager。
例外狀況
例外狀況 | 條件 |
---|---|
InvalidOperationException | 實體不會實作 IEntityWithRelationships 且不是由此 ObjectStateManager 追蹤 |