//Update
        public string Update(PriceManagement objPriceManagement, long CurrentId, long?VariationId)

        {
            PriceManagement idlist = _db.PriceManagements.Where(c => (c.ItemId == CurrentId) && (c.VariationId == VariationId)).FirstOrDefault();

            if (idlist == null)
            {
                objPriceManagement.PriceId = 0;
                _db.PriceManagements.Add(objPriceManagement);
            }
            else if (idlist.ItemId == CurrentId && idlist.VariationId == VariationId)
            {
                idlist.VariationId     = objPriceManagement.VariationId;
                idlist.VariationAmount = objPriceManagement.VariationAmount;
            }
            _db.SaveChanges();
            return("Update successfully");
        }
        //get user by ID

        public PriceManagement GetPriceManagementById(int id)
        {
            PriceManagement priceManagement = _db.PriceManagements.FirstOrDefault(s => s.PriceId == id);

            return(priceManagement);
        }
        //Insert

        public string Create(PriceManagement objPriceManagement)
        {
            _db.PriceManagements.Add(objPriceManagement);
            _db.SaveChanges();
            return("save successfully");
        }