IDbCommandInterceptor.ReaderExecutedAsync 方法

定义

在 EF 调用 后立即调用 ExecuteReaderAsync()

public System.Threading.Tasks.Task<System.Data.Common.DbDataReader> ReaderExecutedAsync (System.Data.Common.DbCommand command, Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData eventData, System.Data.Common.DbDataReader result, System.Threading.CancellationToken cancellationToken = default);
public System.Threading.Tasks.ValueTask<System.Data.Common.DbDataReader> ReaderExecutedAsync (System.Data.Common.DbCommand command, Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData eventData, System.Data.Common.DbDataReader result, System.Threading.CancellationToken cancellationToken = default);
public virtual System.Threading.Tasks.ValueTask<System.Data.Common.DbDataReader> ReaderExecutedAsync (System.Data.Common.DbCommand command, Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData eventData, System.Data.Common.DbDataReader result, System.Threading.CancellationToken cancellationToken = default);
abstract member ReaderExecutedAsync : System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData * System.Data.Common.DbDataReader * System.Threading.CancellationToken -> System.Threading.Tasks.Task<System.Data.Common.DbDataReader>
abstract member ReaderExecutedAsync : System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData * System.Data.Common.DbDataReader * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<System.Data.Common.DbDataReader>
abstract member ReaderExecutedAsync : System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData * System.Data.Common.DbDataReader * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<System.Data.Common.DbDataReader>
override this.ReaderExecutedAsync : System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData * System.Data.Common.DbDataReader * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<System.Data.Common.DbDataReader>
Public Function ReaderExecutedAsync (command As DbCommand, eventData As CommandExecutedEventData, result As DbDataReader, Optional cancellationToken As CancellationToken = Nothing) As Task(Of DbDataReader)
Public Function ReaderExecutedAsync (command As DbCommand, eventData As CommandExecutedEventData, result As DbDataReader, Optional cancellationToken As CancellationToken = Nothing) As ValueTask(Of DbDataReader)
Public Overridable Function ReaderExecutedAsync (command As DbCommand, eventData As CommandExecutedEventData, result As DbDataReader, Optional cancellationToken As CancellationToken = Nothing) As ValueTask(Of DbDataReader)

参数

command
DbCommand

命令。

eventData
CommandExecutedEventData

有关命令和执行的上下文信息。

result
DbDataReader

调用 ExecuteReaderAsync()的结果。 此值通常用作此方法实现的返回值。

cancellationToken
CancellationToken

等待 CancellationToken 任务完成时要观察的 。

返回

提供 Task EF 将使用的结果的 。 对于任何不尝试更改结果的侦听器,此方法的实现是返回 result 传入的值,通常使用 FromResult<TResult>(TResult)

例外

注解

如果侦听器禁止在 中 ReaderExecutingAsync(DbCommand, CommandEventData, InterceptionResult<DbDataReader>, CancellationToken)执行命令,则仍会调用此方法。 在本例中, result 是 返回 ReaderExecutingAsync(DbCommand, CommandEventData, InterceptionResult<DbDataReader>, CancellationToken)的结果。

适用于