BeginTransaction méthode (IsolationLevel)

Begins a new transaction with the specified IsolationLevel enumeration value.

Espace de noms :  Microsoft.AnalysisServices.AdomdClient
Assembly :  Microsoft.AnalysisServices.AdomdClient (dans Microsoft.AnalysisServices.AdomdClient.dll)

Syntaxe

'Déclaration
Public Function BeginTransaction ( _
    isolationLevel As IsolationLevel _
) As AdomdTransaction
'Utilisation
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

Paramètres

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

Valeur de retour

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

Exceptions

Exception	Condition
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.

Notes

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.

[!REMARQUE]

Only IsolationLevel.ReadCommitted is supported.

Voir aussi

Référence

AdomdConnection Classe

Membres AdomdConnection

Surcharge BeginTransaction

Espace de noms Microsoft.AnalysisServices.AdomdClient