通过

DatabaseForeignKey.OnDelete 属性

  • 参考

定义

命名空间:
Microsoft.EntityFrameworkCore.Scaffolding.Metadata
程序集:
Microsoft.EntityFrameworkCore.Relational.dll
包:
Microsoft.EntityFrameworkCore.Relational v2.0.3
包:
Microsoft.EntityFrameworkCore.Relational v2.1.11
包:
Microsoft.EntityFrameworkCore.Relational v2.2.6
包:
Microsoft.EntityFrameworkCore.Relational v3.0.0
包:
Microsoft.EntityFrameworkCore.Relational v3.1.0
包:
Microsoft.EntityFrameworkCore.Relational v5.0.0
包:
Microsoft.EntityFrameworkCore.Relational v6.0.0
包:
Microsoft.EntityFrameworkCore.Relational v7.0.0
包:
Microsoft.EntityFrameworkCore.Relational v8.0.0

删除 null 受此外键约束的行或未定义任何操作时数据库执行的操作。

public virtual Microsoft.EntityFrameworkCore.Migrations.ReferentialAction? OnDelete { get; set; }
member this.OnDelete : Nullable<Microsoft.EntityFrameworkCore.Migrations.ReferentialAction> with get, set
Public Overridable Property OnDelete As Nullable(Of ReferentialAction)

属性值

Nullable<ReferentialAction>

适用于