protected override void OnNavigatedTo(NavigationEventArgs e) { NewsModel = NavigationServices.CurrentViewModel as NewsViewModel; if (e.NavigationMode == NavigationMode.New && NavigationContext.QueryString.ContainsKey("id")) { string id = NavigationContext.QueryString["id"]; if (!String.IsNullOrEmpty(id)) { _isDeepLink = true; NewsModel = new NewsViewModel(); NavigationServices.CurrentViewModel = NewsModel; NewsModel.LoadItem(id); } } if (NewsModel != null) { NewsModel.ViewType = ViewTypes.Detail; } DataContext = NewsModel; base.OnNavigatedTo(e); }