AlterOperationBuilder<TOperation>.OldAnnotation(String, Object) 方法

定義

命名空間:

Microsoft.EntityFrameworkCore.Migrations.Operations.Builders

組件:

Microsoft.EntityFrameworkCore.Relational.dll

套件:

Microsoft.EntityFrameworkCore.Relational v8.0.0

以指定的名稱/值組標注 MigrationOperation ，做為變更之前存在的批註。

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.AlterOperationBuilder<TOperation> OldAnnotation (string name, object? value);

abstract member OldAnnotation : string * obj -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.AlterOperationBuilder<'Operation (requires 'Operation :> Microsoft.EntityFrameworkCore.Migrations.Operations.MigrationOperation and 'Operation :> Microsoft.EntityFrameworkCore.Migrations.Operations.IAlterMigrationOperation)>
override this.OldAnnotation : string * obj -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.AlterOperationBuilder<'Operation (requires 'Operation :> Microsoft.EntityFrameworkCore.Migrations.Operations.MigrationOperation and 'Operation :> Microsoft.EntityFrameworkCore.Migrations.Operations.IAlterMigrationOperation)>

Public Overridable Function OldAnnotation (name As String, value As Object) As AlterOperationBuilder(Of TOperation)

參數

name

String

批註名稱。

value

Object

註釋值。

傳回

AlterOperationBuilder<TOperation>

相同的產生器，讓多個呼叫可以鏈結。