IList pimList = gv_PisInfo.DataController.GetAllFilteredAndSortedRows();                //List
     
       pimList = gc_PisInfo.DataSource as List
      
       ;                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;                    }                }