public productDto ProductDaoToProductDto(productDao p)
        {
            productDto pd = new productDto();

            pd.Id       = p.Id;
            pd.Name     = p.Name;
            pd.Price    = p.Price;
            pd.Discount = p.Discount;
            return(pd);
        }
        public productDao ProductDtoToProductDao(productDto pd)
        {
            productDao p = new productDao();

            p.Id       = pd.Id;
            p.Name     = pd.Name;
            p.Price    = pd.Price;
            p.Discount = pd.Discount;
            return(p);
        }