Bagikan melalui

IConventionForeignKeyBuilder.OnDelete Metode

  • Referensi

Definisi

Ruang nama:
Microsoft.EntityFrameworkCore.Metadata.Builders
Rakitan:
Microsoft.EntityFrameworkCore.dll
Paket:
Microsoft.EntityFrameworkCore v5.0.0
Paket:
Microsoft.EntityFrameworkCore v6.0.0
Paket:
Microsoft.EntityFrameworkCore v7.0.0
Paket:
Microsoft.EntityFrameworkCore v8.0.0

Mengonfigurasi operasi yang diterapkan ke entitas dependen dalam hubungan saat prinsipal dihapus atau hubungan terputus.

public Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionForeignKeyBuilder OnDelete (Microsoft.EntityFrameworkCore.DeleteBehavior? deleteBehavior, bool fromDataAnnotation = false);
public Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionForeignKeyBuilder? OnDelete (Microsoft.EntityFrameworkCore.DeleteBehavior? deleteBehavior, bool fromDataAnnotation = false);
abstract member OnDelete : Nullable<Microsoft.EntityFrameworkCore.DeleteBehavior> * bool -> Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionForeignKeyBuilder
Public Function OnDelete (deleteBehavior As Nullable(Of DeleteBehavior), Optional fromDataAnnotation As Boolean = false) As IConventionForeignKeyBuilder

Parameter

deleteBehavior
Nullable<DeleteBehavior>

Tindakan yang harus dilakukan. null untuk mengatur ulang ke default.

fromDataAnnotation
Boolean

Menunjukkan apakah konfigurasi ditentukan menggunakan anotasi data.

Mengembalikan

IConventionForeignKeyBuilder

Instans penyusun yang sama jika operasi penghapusan dikonfigurasi, null jika tidak.

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