MySqlCommand serialBox_1 = new MySqlCommand("Select serial_Units from Units where " + stationSelection_1 = "station_Units", connection);

public MainWindow()
        {
            InitializeComponent();


            string connectionString = "SERVER=localhost;DATABASE=dbname; UID=myPC;Password=mypw;";

            MySqlConnection connection = new MySqlConnection(connectionString);

            MySqlCommand stationList = new MySqlCommand("Select stationNumber_stations from stations", connection);
            connection.Open();


            DataTable dt_stations = new DataTable();
            dt_stations.Load(stationList.ExecuteReader());
            connection.Close();

            stationComboBox_1.DataContext = dt_stations;
            stationComboBox_1.ItemsSource = dt_stations.DefaultView;

            string stationSelection_1 = stationComboBox_1.Text;


            MySqlCommand serialBox_1 = new MySqlCommand("Select serial_Units from Units where " + stationSelection_1 = "station_Units", connection);