private void buttonLogin_Click(object sender, RoutedEventArgs e)
        {
            if (SigknowDBServer.gServer == Global.gEMPTY)
            {
                MessageBox.Show("請先設定伺服器資料.");
                return;
            }
            if (Global.gStation == Global.gEMPTY)
            {
                MessageBox.Show("輸入站名");
                return;
            }
            if ((Global.gUsername == Global.gEMPTY) || (Global.gUsername == ""))
            {
                MessageBox.Show("輸入姓名");
                return;
            }
            switch (Global.gStation)
            {
                case StationName.gStationA:
                    var stationA = new StationA(this);
                    this.Hide();
                    stationA.ShowDialog();
                    break;
                case StationName.gStationB:
                    var stationB = new StationB(this);
                    this.Hide();
                    stationB.ShowDialog();
                    break;
                case StationName.gStationC:
                    var stationC = new StationC(this);
                    this.Hide();
                    stationC.ShowDialog();
                    break;
                //case StationName.gStationD:
                //    var stationD = new StationD(this);
                //    this.Hide();
                //    stationD.ShowDialog();
                //    break;
                case StationName.gStationE:
                    var stationE = new StationE(this);
                    this.Hide();
                    stationE.ShowDialog();
                    break;
                case StationName.gStationF:
                    var stationF = new StationF(this);
                    this.Hide();
                    stationF.ShowDialog();
                    break;
                case StationName.gStationG:
                    var stationG = new StationG(this);
                    this.Hide();
                    stationG.ShowDialog();
                    break;

            }
        }
 public StationEassociate(StationE w)
     : this()
 {
     mainwindow = w;
 }