获取过滤后的gridcontrol数据集方法

　　　　　　　　　IList pimList = gv_PisInfo.DataController.GetAllFilteredAndSortedRows();
                //List<PisInfoModel> pimList = gc_PisInfo.DataSource as List<PisInfoModel>;
                if (pimList == null) return;
                foreach (PisInfoModel item in pimList)
                {
                    string ip = item.Ip;
                    bool pingResult = Ping(ip);
                    if (pingResult)
                    {
                        item.Communications = 1;
                    }
                    else
                    {
                        item.Communications = 0;
                    }
                }