RelationalDatabaseFacadeExtensions.GetPendingMigrationsAsync 方法

定义

命名空间:

Microsoft.EntityFrameworkCore

程序集:

Microsoft.EntityFrameworkCore.Relational.dll

包:

Microsoft.EntityFrameworkCore.Relational v9.0.0

Source:

RelationalDatabaseFacadeExtensions.cs

异步获取程序集中定义但尚未应用于目标数据库的所有迁移。

[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Migrations operations are not supported with NativeAOT Use a migration bundle or an alternate way of executing migration operations.")]
public static System.Threading.Tasks.Task<System.Collections.Generic.IEnumerable<string>> GetPendingMigrationsAsync (this Microsoft.EntityFrameworkCore.Infrastructure.DatabaseFacade databaseFacade, System.Threading.CancellationToken cancellationToken = default);

[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Migrations operations are not supported with NativeAOT Use a migration bundle or an alternate way of executing migration operations.")>]
static member GetPendingMigrationsAsync : Microsoft.EntityFrameworkCore.Infrastructure.DatabaseFacade * System.Threading.CancellationToken -> System.Threading.Tasks.Task<seq<string>>

<Extension()>
Public Function GetPendingMigrationsAsync (databaseFacade As DatabaseFacade, Optional cancellationToken As CancellationToken = Nothing) As Task(Of IEnumerable(Of String))

参数

databaseFacade

DatabaseFacade

DatabaseFacade上下文的 。

cancellationToken

CancellationToken

等待 CancellationToken 任务完成时要观察的 。

返回

Task<IEnumerable<String>>

表示异步操作的任务。

属性

RequiresDynamicCodeAttribute

例外

OperationCanceledException

如果已取消 CancellationToken。

注解

有关详细信息和示例 ，请参阅数据库迁移 。