WCF Distributed Development Common error (14): Invalid operation exception, at least one operation on the.

An invalid exception occurs during WCF transaction programming. The information is as follows:

At least one operation on the ' WCFServiceTransaction1 ' contract are configured with the Transactionflowattribute attribute The set to mandatory but the channel ' s binding ' nettcpbinding ' isn't configured with a transactionflowbindingelement. The Transactionflowattribute set to mandatory cannot is used without a transactionflowbindingelement.

The exception interface is shown in figure:

I was in the debugging client transaction mode when the error occurred, the service contract and the service class code is as follows:

using System;


using System.Collections.Generic;


using System.Linq;


using System.Text;


using System.ServiceModel;


using System.Runtime.Serialization;


using System.Transactions;


using System.Diagnostics;

The
//servicecontract property and all other properties used by Indigo are defined in the System.ServiceModel namespace.


//So this example starts with a using statement to refer to the namespace.





namespace Wcfservice


{


//1. Service Contract


[ServiceContract (Namespace = "http://www.cnblogs.com/frank_xl/")]


public Interface IWCFServiceTransaction1


　　　　 {


//Operation contract


[OperationContract]


//Force transaction flow, using client transaction


//[transactionflow (Transactionflowattribute


[TransactionFlow (transactionflowoption.mandatory)]


bool Addnewdata (string name);





　　　　 }


//2. Service class, implement contract


//transaction has a timeout limit of 10 minutes


//[servicebehavior (Includeexceptiondetailinfaults = true)]


[ServiceBehavior (Includeexceptiondetailinfaults = true, TransactionTimeout = "00:30:00")]


public class Wcfservicetransaction1:iwcfservicetransaction1


　　　　 {


//Implementation of the interface definition method


//Need transaction environment, start transaction


[OperationBehavior (transactionscoperequired = true, TransactionAutoComplete = True)]


public bool Addnewdata (string name)


　　　　　　　　 {


Transaction Transaction = transaction.current;


Debug.Assert (System.transactions.transaction.current.transactioninformation.distributedidentifier!=guid . Empty);


Console.WriteLine ("Create a new Transaction at {0}", System.Transactions.Transaction.Current.Transactio Ninformation.creationtime);


Console.WriteLine ("Wcfservice 1 Transaction Status is {0}", System.Transactions.Transaction.Current.Tra Nsactioninformation.status);


Console.WriteLine ("Wcfservice 1 Transaction localidentifier is {0}", System.Transactions.Transaction.Current.TransactionInformation.LocalIdentifier);


Console.WriteLine ("Wcfservice 1 Transaction distributedidentifier is {0}", System.Transactions.Transact Ion. Current.TransactionInformation.DistributedIdentifier);





//using (System.Transactions.TransactionScope ts = new System.Transactions.TransactionScope ())


　　　　　　　　　　　　 //{


Try


　　　　　　　　　　　　 {


using (usertableadapter adapter = new Usertableadapter ())


　　　　　　　　　　　　　　　　 {


if (1 = adapter. CreateUser (name))


　　　　　　　　　　　　　　　　　　　　 {


Console.WriteLine ("Calling WCF Transaction sucessfully name Length is:{0} ", name. Length);


　　　　　　　　　　　　　　　　　　　　 }


Else


　　　　　　　　　　　　　　　　　　　　 {


Console.WriteLine ("Calling WCF Transaction unsucessfully name length is : {0} ", name. Length);


//return false;


　　　　　　　　　　　　　　　　　　　　 }


　　　　　　　　　　　　　　　　 }


　　　　　　　　　　　　 }


catch (Exception e)


　　　　　　　　　　　　 {


Console.WriteLine ("Calling WCF Transaction error:{0}", E.message);


throw E;


//return false;


}





//ts.complete ();


return true;





　　　　　　　　 }


　　　　 }


}