public string messageError(HttpStatusCode error_code)
        {
            errorResponse objError  = new errorResponse();
            int           idMessage = Convert.ToInt32(error_code);
            string        message   = "";

            switch (idMessage)
            {
            case 400:
                message = errorResponse.error400;
                break;

            case 401:
                message = errorResponse.error401;
                break;

            case 404:
                message = errorResponse.error404;
                break;

            case 500:
                message = errorResponse.error500;
                break;

            default:
                message = "Fault occurred";
                break;
            }

            return(message);
        }
        public errorResponse responseError(HttpStatusCode error_code)
        {
            errorResponse objError = new errorResponse();

            objError.error_msg  = messageError(error_code);
            objError.error_code = error_code;
            objError.success    = false;

            return(objError);
        }