public string UpdateCustomer(CustomerModel model)
        {
            string isSuccess = "0";

            if (model != null && !String.IsNullOrEmpty(model.CustomerCode))
            {
                Customer param = _billingService.GetCustomer(_workContext.User.UserUame);
                param.AccountPassWord = model.SureNewPassWord.Trim().ToMD5();
                isSuccess             = _billingService.UpdateCustomer(param);
            }
            return(isSuccess);
        }