Статья
04/01/2012

Метод BeginTransaction (IsolationLevel)

Begins a new transaction with the specified IsolationLevel enumeration value.

Пространство имен: Microsoft.AnalysisServices.AdomdClient
Сборка: Microsoft.AnalysisServices.AdomdClient (в Microsoft.AnalysisServices.AdomdClient.dll)

Синтаксис

'Декларация
Public Function BeginTransaction ( _
    isolationLevel As IsolationLevel _
) As AdomdTransaction
'Применение
Dim instance As AdomdConnection
Dim isolationLevel As IsolationLevel
Dim returnValue As AdomdTransaction

returnValue = instance.BeginTransaction(isolationLevel)

public AdomdTransaction BeginTransaction(
    IsolationLevel isolationLevel
)

public:
AdomdTransaction^ BeginTransaction(
    IsolationLevel isolationLevel
)

member BeginTransaction : 
        isolationLevel:IsolationLevel -> AdomdTransaction

public function BeginTransaction(
    isolationLevel : IsolationLevel
) : AdomdTransaction

Параметры

isolationLevel
Тип: System.Data. . :: . .IsolationLevel
An IsolationLevel enumeration value.

Возвращаемое значение

Тип: Microsoft.AnalysisServices.AdomdClient. . :: . .AdomdTransaction
An AdomdTransaction that represents the newly started transaction.

Исключения

Исключение	Условие
System..::..NotSupportedException	The member was called with an unsupported isolation level.
AdomdErrorResponseException	The provider returned an error in response.
AdomdUnknownResponseException	The provider sent an unrecognizable response.
AdomdConnectionException	The connection was broken.
System..::..InvalidOperationException	An error occurred because one of the following conditions was met: The connection was not set. The connection was not opened. Either the CommandText property or the CommandStream property was improperly set. Both the CommandText property and the CommandStream property were set. Neither the CommandText property, nor the CommandStream property was set.

Замечания

Once the transaction has completed, you must explicitly commit the transaction by using the Commit method or roll back the transaction by using the Rollback method of the AdomdTransaction.