public ImageRecognizePage() { Current = this; this.InitializeComponent(); this.NavigationCacheMode = Windows.UI.Xaml.Navigation.NavigationCacheMode.Required; // gán static resouce bên xaml để xài _imageViewModel = Resources["imageDataContext"] as ImageRecognizeViewModel; listpickerflyout.ItemsSource = Util.AvailableCountries.Values; _imageViewModel.Language = (OcrLanguage)Enum.Parse( typeof(OcrLanguage), LocalSettingHelper.GetLocalSettingValue(LocalSettingHelper.RecogLanguageKey).ToString()); HardwareButtons.BackPressed += hardwareButtons_BackPressed; }