public ActionResult AddPrice(string json)
        {
            if (Session["auth_info"] != null)
            {
                try
                {
                    var authInfo = (AuthInfo)Session["auth_info"];
                    IList <PriceModel> listPrice;
                    listPrice = JsonConvert.DeserializeObject <IList <PriceModel> >(json);
                    //foreach (var item in listPrice)
                    //    if (string.IsNullOrEmpty(item.Id))
                    //        listPrice.Remove(item);

                    var model = new EditPriceModel();
                    model.HospitalId = authInfo.CurrentSelectedClinic.ClinicId;
                    model.Prices     = listPrice;

                    _priceService.AddPrice(null, model);
                    TempData[GlobalConstant.ErrorTemp] = "List prices successfully updated.";
                    return(Json(new { success = "true" }, JsonRequestBehavior.AllowGet));
                }
                catch (ApiException ex)
                {
                    TempData[GlobalConstant.ErrorTemp] = ex.Message;
                    return(Json(new { success = "false" }, JsonRequestBehavior.AllowGet));
                }
            }
            else
            {
                TempData[GlobalConstant.ErrorTemp] = GlobalConstant.SessionExpiredOrNotLogin;
                return(RedirectToAction("Index", "Home"));
            }
        }