private void btnFindResouce_Click(object sender, RoutedEventArgs e)
 {
     cmbAddress.Items.Clear();
     InstrumentUtilityDotNet.InstrumentManager instrumentManager = new InstrumentUtilityDotNet.InstrumentManager();
     string[] arr = instrumentManager.FindAllResource();
     foreach (string addr in arr)
     {
         cmbAddress.Items.Add(addr);
     }
 }
 public MainWindow()
 {
     InitializeComponent();
     instrument = new InstrumentManager();
 }