BeginTransaction 方法 (IsolationLevel)

Begins a new transaction with the specified IsolationLevel enumeration value.

命名空間：  Microsoft.AnalysisServices.AdomdClient
組件：  Microsoft.AnalysisServices.AdomdClient (在 Microsoft.AnalysisServices.AdomdClient.dll 中)

語法

'宣告
Public Function BeginTransaction ( _
    isolationLevel As IsolationLevel _
) As AdomdTransaction
'用途
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

參數

• isolationLevel
  型別：System.Data. . :: . .IsolationLevel
  An IsolationLevel enumeration value.

傳回值

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

例外狀況

例外狀況	條件
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.

備註

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.

[!附註]

Only IsolationLevel.ReadCommitted is supported.

請參閱

參考

AdomdConnection 類別

BeginTransaction 多載

Microsoft.AnalysisServices.AdomdClient 命名空間