public static OperationExecutionFault CreateOperationNotAvailableFault(Guid instanceId, string operationName)
 {
     if (operationNotAvailableFaultCode == null)
     {
         operationNotAvailableFaultCode = new FaultCode(XD2.WorkflowControlServiceFaults.OperationNotAvailable, XD2.WorkflowServices.Namespace);
     }
     return(new OperationExecutionFault(SR2.OperationNotAvailable(operationName, instanceId), operationNotAvailableFaultCode));
 }