//删除用户的收藏18 OK
        public bool DeleteCollectItem(String UserID, Guid CommodityID)
        {
            bool IsSucceed = false;
            //数据访存器
            DatabaseAccess.DataClasses1DataContext DBAccessor = new DataClasses1DataContext();

            try
            {
                DBAccessor.deleteCollect(UserID, CommodityID);
                IsSucceed = true;
            }
            catch (Exception e)
            {
                IsSucceed = false;
            }

            return IsSucceed;
        }