public int Update_menu(Food_item fi, int food_id)
        {
            dbc = new DataAccess();
            string sql = "UPDATE Food_item  SET food_name='" + fi.Food_name + "' ,food_price =" + fi.Food_price + " ,food_des ='" + fi.Food_des + "' ,food_cooktime =" + fi.Food_cT + " ,food_pic ='" + fi.Food_photo + "',food_avl=" + fi.Food_avl + " ,food_cat =" + fi.Food_cat + " where Food_id=" + food_id + " ";
            int    res = dbc.ExecuteQuery(sql);

            return(res);
        }
        public int AddItem(Food_item fI)
        {
            dbc = new DataAccess();

            string sql = "insert into Food_item(food_name, food_price, food_des, food_cooktime, food_pic, food_avl, food_cat) values('" + fI.Food_name + "'," + fI.Food_price + ", '" + fI.Food_des + "'," + fI.Food_cT + ",'" + fI.Food_photo + "'," + fI.Food_avl + ", " + fI.Food_cat + ")";

            int result = dbc.ExecuteQuery(sql);

            dbc.Dispose();
            if (result > 0)
            {
                return(1);
            }
            else
            {
                return(0);
            }
        }