list 集合筛选数据

/// <summary>
        /// 根据ModelId筛选查询出对应的数据
        /// </summary>
        /// <param name="list"></param>
        /// <param name="ModelId"></param>
        /// <returns></returns>
        private List<GetSellerOrdersRealItemsParms> selectList(List<GetSellerOrdersRealItemsParms> list, int ModelId)
        {
            if (ModelId != 0)
            {
                return list.FindAll(delegate(GetSellerOrdersRealItemsParms info)
                {
                    if (info.ModelId == ModelId)
                    {
                        return true;
                    }
                    else
                    {
                        return false;
                    }
                });
            }
            else
            {
                return list.FindAll(delegate(GetSellerOrdersRealItemsParms info)
                {
                    return true;
                });
            }
        }