// -------------------------------------------------------
        // 自定义功能
        // -------------------------------------------------------

        #region 函数:GetPaging(int startIndex, int pageSize, DataQuery query, out int rowCount)
        /// <summary>分页函数</summary>
        /// <param name="startIndex">开始行索引数,由0开始统计</param>
        /// <param name="pageSize">页面大小</param>
        /// <param name="query">数据查询参数</param>
        /// <param name="rowCount">记录行数</param>
        /// <returns>返回一个列表实例<see cref="ContactInfo"/></returns>
        public IList <ContactInfo> GetPaging(int startIndex, int pageSize, DataQuery query, out int rowCount)
        {
            return(provider.GetPaging(startIndex, pageSize, query, out rowCount));
        }