private void readIpAddrToTextFile()
        {
            TxtFile   IpFile      = new TxtFile("deviceIp.txt");
            ArrayList IpArrayList = IpFile.readFile();

            foreach (object o in IpArrayList)
            {
                kryptonComboBoxControllerIp.Items.Add(o.ToString());
            }
            if (kryptonComboBoxControllerIp.Items.Count == 0)
            {
                kryptonComboBoxControllerIp.Items.Add("192.168.1.242");
            }

            kryptonComboBoxControllerIp.SelectedIndex = 0;
        }