MutableEntityTypeExtensions.RemoveForeignKey 方法

定義

命名空間:

Microsoft.EntityFrameworkCore

組件:

Microsoft.EntityFrameworkCore.dll

套件:

Microsoft.EntityFrameworkCore v5.0.0

從這個實體類型移除外鍵。

public static Microsoft.EntityFrameworkCore.Metadata.IMutableForeignKey RemoveForeignKey (this Microsoft.EntityFrameworkCore.Metadata.IMutableEntityType entityType, System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Metadata.IMutableProperty> properties, Microsoft.EntityFrameworkCore.Metadata.IMutableKey principalKey, Microsoft.EntityFrameworkCore.Metadata.IMutableEntityType principalEntityType);

static member RemoveForeignKey : Microsoft.EntityFrameworkCore.Metadata.IMutableEntityType * System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Metadata.IMutableProperty> * Microsoft.EntityFrameworkCore.Metadata.IMutableKey * Microsoft.EntityFrameworkCore.Metadata.IMutableEntityType -> Microsoft.EntityFrameworkCore.Metadata.IMutableForeignKey

<Extension()>
Public Function RemoveForeignKey (entityType As IMutableEntityType, properties As IReadOnlyList(Of IMutableProperty), principalKey As IMutableKey, principalEntityType As IMutableEntityType) As IMutableForeignKey

參數

entityType

IMutableEntityType

實體類型。

properties

IReadOnlyList<IMutableProperty>

定義外鍵的屬性。

principalKey

IMutableKey

參考的主要或替代索引鍵。

principalEntityType

IMutableEntityType

關聯性針對的實體型別。 這可能與當關聯性以繼承階層中的衍生型別為目標時所定義的類型 principalKey 不同 (，因為索引鍵是在階層的基底類型上定義) 。

傳回

IMutableForeignKey

已移除的外鍵。