WebMethodAttribute.TransactionOption Property

 

Indicates the transaction support of an XML Web service method.

Namespace:   System.Web.Services
Assembly:  System.Web.Services (in System.Web.Services.dll)

public TransactionOption TransactionOption { get; set; }

Property Value

Type: System.EnterpriseServices.TransactionOption

The transaction support of an XML Web service method. The default is Disabled.

XML Web service methods can only participate as the root object in a transaction, due to the stateless nature of the HTTP protocol. XML Web service methods can invoke COM objects that participate in the same transaction as the XML Web service method, if the COM object is marked to run within a transaction in the Component Services administrative tool. If an XML Web service method with a TransactionOption property of Required or RequiresNew invokes another XML Web service method with a TransactionOption property of Required or RequiresNew, each XML Web service method participates in its own transaction, because an XML Web service method can only act as the root object in a transaction.

Item

Description

Disabled

Indicates that the XML Web service method does not run within the scope of a transaction. When a request is processed, the XML Web service method is executed without a transaction.

[WebMethod(TransactionOption= TransactionOption.Disabled)]

NotSupported

Indicates that the XML Web service method does not run within the scope of a transaction. When a request is processed, the XML Web service method is executed without a transaction.

[WebMethod(TransactionOption= TransactionOption.NotSupported)]

Supported

Indicates that the XML Web service method does not run within the scope of transactions. When a request is processed, the XML Web service is created without a transaction.

[WebMethod(TransactionOption= TransactionOption.Supported)]

Required

Indicates that the XML Web service method requires a transaction. Since XML Web service methods can only participate as the root object in a transaction, a new transaction will be created for the XML Web service method.

[WebMethod(TransactionOption= TransactionOption.Required)]

RequiresNew

Indicates that the XML Web service method requires a new transaction. When a request is processed, the XML Web service is created within a new transaction.

[WebMethod(TransactionOption= TransactionOption.RequiresNew)]

If an exception is thrown from or not caught by an XML Web service method, the transaction is automatically aborted. If no exceptions occur the transaction is automatically committed unless the method explicitly calls SetAbort.

The example below begins a new transaction when the Transfer method is called.

.NET Framework
Available since 1.1
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