public List <BLL_Model> Grab()
        {
            List <PcDO>      pcdo  = pcDao.ViewPrices();
            List <BLL_Model> model = new List <BLL_Model>();

            foreach (PcDO sumObject in pcdo)
            {
                model.Add(mapper.MapperBLLtoPCDO(sumObject));
            }
            return(model);
        }