IRelationalCommandDiagnosticsLogger.CommandScalarExecutingAsync 方法

定義

命名空間:

Microsoft.EntityFrameworkCore.Diagnostics

組件:

Microsoft.EntityFrameworkCore.Relational.dll

套件:

Microsoft.EntityFrameworkCore.Relational v9.0.0

來源:

IRelationalCommandDiagnosticsLogger.cs

CommandExecuting事件的記錄。

public System.Threading.Tasks.ValueTask<Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<object>> CommandScalarExecutingAsync (Microsoft.EntityFrameworkCore.Storage.IRelationalConnection connection, System.Data.Common.DbCommand command, Microsoft.EntityFrameworkCore.DbContext? context, Guid commandId, Guid connectionId, DateTimeOffset startTime, Microsoft.EntityFrameworkCore.Diagnostics.CommandSource commandSource, System.Threading.CancellationToken cancellationToken = default);

abstract member CommandScalarExecutingAsync : Microsoft.EntityFrameworkCore.Storage.IRelationalConnection * System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.DbContext * Guid * Guid * DateTimeOffset * Microsoft.EntityFrameworkCore.Diagnostics.CommandSource * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<obj>>

Public Function CommandScalarExecutingAsync (connection As IRelationalConnection, command As DbCommand, context As DbContext, commandId As Guid, connectionId As Guid, startTime As DateTimeOffset, commandSource As CommandSource, Optional cancellationToken As CancellationToken = Nothing) As ValueTask(Of InterceptionResult(Of Object))

參數

connection

IRelationalConnection

連接。

command

DbCommand

資料庫命令物件。

context

DbContext

DbContext目前使用的 ，如果不知道，則為 null。

commandId

Guid

與指定 DbCommand 相關聯的相互關聯識別碼。

connectionId

Guid

與 DbConnection 所使用 關聯的相互關聯識別碼。

startTime

DateTimeOffset

開始執行的時間。

commandSource

CommandSource

命令的來源。

cancellationToken

CancellationToken

等候 CancellationToken 工作完成時要觀察的 。

傳回

ValueTask<InterceptionResult<Object>>

攔截的結果。

例外狀況

OperationCanceledException

如果取消 CancellationToken。