public ActionResult LoadGrid()
        {
            var status = "error";

            try
            {
                if (!Authenticated)
                {
                    status = "SESSION EXPIRED";
                }
                else
                {
                    //var item = (from i in db.Items
                    //            join
                    //            c in db.Categories
                    //            on
                    //            i.CategoryId equals c.Id
                    //            join
                    //            sc in db.SubCategories
                    //            on
                    //            i.SubCategoryId equals sc.Id
                    //            join
                    //            u in db.UnitOfMeasures
                    //            on
                    //            i.UomId equals u.Id
                    //            select
                    //            new
                    //            {
                    //                UID = i.UID,
                    //                Name = i.Name,
                    //                Barcode = i.Barcode,
                    //                CategoryName = c.Name,
                    //                SubCategoryName = sc.Name,
                    //                UomName = u.Name,
                    //                Comment = i.Description,
                    //            });

                    var item = db.LoadProductBarcode();

                    status = JsonConvert.SerializeObject(item);
                }
            }
            catch (Exception ex)
            {
                ApplicationExceptionLogging(ex.Message, ex.StackTrace, "BarcodeManagement", "LoadGrid");
            }
            return(Content(status));
        }