private void button4_Click(object sender, EventArgs e)
        {
            try
            {
                System.IO.File.Delete("MVT.txt");
                System.IO.File.Copy(@"\\192.168.1.173\exported\MVT.txt", "MVT.txt");
            }
            catch (Exception)
            {

                throw;
            }

            Broker b = new Broker();
            String CsOG = "";
            buginDeparture = b.FillListBox(b.LoadOccupation("MVT"));
            listBox1.DataSource = null;
            foreach (var item in buginDeparture)
            {
                CsOG = CsOG + " " + item.FlightNumber;
                listBox1.Items.Add(item.FlightNumber);
                comboBox1.DataSource = b.Updater(item, item, 1);
            }
            b.WriteMyLOG("Update Flight: " + CsOG);
            b.CloseReader();
        }