private void FillMonitorTable(int monitorId)
        {
            Monitor  mon = ConfigurationDAL.GetMonitorById(monitorId);
            Material mat = ConfigurationDAL.GetMaterialById(mon.materialsId);

            List <Tuple <string, string> > monitorList = new List <Tuple <string, string> >();

            monitorList.Add(new Tuple <string, string>("номер", mon.id.ToString()));
            monitorList.Add(new Tuple <string, string>("номер на материали", mon.materialsId.ToString()));
            monitorList.Add(new Tuple <string, string>("матрица", mon.matrix));
            monitorList.Add(new Tuple <string, string>("aspect ratio", mon.aspectRatio));
            monitorList.Add(new Tuple <string, string>("led", mon.led));
            monitorList.Add(new Tuple <string, string>("производител", mon.producer));
            monitorList.Add(new Tuple <string, string>("материали на поставка", mat.stand));
            monitorList.Add(new Tuple <string, string>("материали на дисплей", mat.display));
            MonitorGridView.DataSource = monitorList;
            MonitorGridView.DataBind();
        }