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
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:
|
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.