WCF Exception: “The service operation requires a transaction to be flowed”

WCF Exception: “The service operation requires a transaction to be flowed”

Recently I encountered the wcf transaction error while calling to WCF service and this WCF service is transaction based service and I tried to call service without any transaction scope.

try

            {

                Account.AccountServiceClient account = new Account.AccountServiceClient();

                account.UpdateTaxRefundAmount(taxId, refund);

            }

                   

              catch (Exception ex)

            {

                throw;

            }   

In this blog, we will discuss how to create transaction scope and call transaction enabled service method.

You can use TranscationScope class to define a block of code which will be executed in a transaction and this call expose below methods to manage the current transaction status:

•  Complete() – all operations within the current transaction scope are completed successfully.
•   Dispose () – it aborts the current transaction.

Example C# : 

        

using (TransactionScope ts = new TransactionScope(TransactionScopeOption.RequiresNew))

            {

                try

                {

                    // Call service method

                Account.AccountServiceClient account = new Account.AccountServiceClient();

                account.UpdateTaxRefundAmount(taxId, refund);

                    ts.Complete();

                }

                catch (Exception ex)

                {

                    ts.Dispose();

                }

             }

you can define the behavior of truncation scope by passing the below transcationScopeOption to constructor of transcationScope class 

• Required - a transaction is required by the scope, if there is already an existing transaction scope otherwise it creates new transaction.
• RequiredNew – it always create a new transaction.
• Surpress – it suppress the parent transaction or surrounding transaction.