/// <summary> /// Initializes a new instance of the <see cref="MessengerWindow"/> class. /// </summary> /// <param name="messengerService">The messenger service.</param> public MessengerWindow(IMessengerService messengerService) { InitializeComponent(); _messengerService = messengerService; _messengerService.SignIn("paul", "foo"); _contactsListBox.ItemsSource = (from c in _messengerService.Contacts.AsBindable() where c.Name.ToLower(CultureInfo.CurrentUICulture).Contains(_filterTextBox.Text.ToLower(CultureInfo.CurrentUICulture)) orderby c.Name select c); }