public LicenseSettings() { IEventAggregator eventAggregator = ObjectLocator.GetInstance <IEventAggregator>(); eventAggregator.AddListener <LicenseInitializedEvent>(x => SetData()); eventAggregator.AddListener <ServicesUpdatedEvent>(x => cboService.ItemsSource = UIContext.GetAllServices()); InitializeComponent(); WindowHelper.CheckAndApplyTheme(this); this.Loaded += new RoutedEventHandler(LicenseSettings_GotFocus); SetData(); }