ConventionTypeConfiguration.HasKey 方法 (String)
[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。]
為此實體類型設定主索引鍵屬性。
命名空間: System.Data.Entity.ModelConfiguration.Configuration
組件: EntityFramework (在 EntityFramework.dll 中)
語法
'宣告
Public Function HasKey ( _
propertyName As String _
) As ConventionTypeConfiguration
'用途
Dim instance As ConventionTypeConfiguration
Dim propertyName As String
Dim returnValue As ConventionTypeConfiguration
returnValue = instance.HasKey(propertyName)
public ConventionTypeConfiguration HasKey(
string propertyName
)
public:
ConventionTypeConfiguration^ HasKey(
String^ propertyName
)
member HasKey :
propertyName:string -> ConventionTypeConfiguration
public function HasKey(
propertyName : String
) : ConventionTypeConfiguration
參數
- propertyName
類型:System.String
要當做主索引鍵使用之屬性的名稱。
傳回值
類型:System.Data.Entity.ModelConfiguration.Configuration.ConventionTypeConfiguration
可以鏈結多個呼叫的相同 ConventionTypeConfiguration 執行個體。