public void OnNavigatedTo(NavigationContext navigationContext)
 {
     string ParametroRecibido = navigationContext.Parameters["TheText"];
     // ReceptionTextBox.Text = ParametroRecibido; // este codigo es para una implantación con codebehinde
     RecepcionDato = ParametroRecibido;
     System.Windows.MessageBox.Show(String.Format("El parametro recibido es :/{0}/", ParametroRecibido));
 }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            ViewModel = (MediaFileBrowserImagePanelViewModel)navigationContext.Parameters["viewModel"];
            DataContext = ViewModel;

            ViewModel.OnNavigatedTo(navigationContext);
        }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            menu = new RTIMainView();
            menu.AboutButton.Command = aboutCommand;

            ribbonService.AddRibbonItem(menu, true);
        }

 /// <summary>
 /// 当前的页面被导航到以后发生，这个函数可以用来处理URI的参数
 /// </summary>
 /// <param name="navigationContext"></param>
 public void OnNavigatedTo(NavigationContext navigationContext)
 {
     if (TagMsg == null || TagMsg == "")
     {
         TagMsg = "密码";
     }
 }

 public void OnNavigatedFrom(NavigationContext navigationContext)
 {
     foreach (var tabItem in _tabs)
     {
         tabItem.ViewModel.Deinitialize(navigationContext);
     }
 }

 public void OnNavigatedTo(NavigationContext navigationContext)
 {
     if (navigationContext.Parameters != null && navigationContext.Parameters.Any())
     {
         var id = (int?) navigationContext.Parameters["Id"];
         if (id.HasValue)
         {
             ViewModel = new DishViewModel(id.Value)
             {
                 Repository = Repository
             };
         }
         else
         {
             ViewModel = new DishViewModel
             {
                 Repository = Repository
             };
         }
     }
     else
         ViewModel = new DishViewModel
         {
             Repository = Repository
         };
 }

 private void RaiseNavigating(NavigationContext navigationContext)
 {
     if (this.Navigating != null)
     {
         this.Navigating(this, new RegionNavigationEventArgs(navigationContext));
     }
 }

        /// <summary>
        /// Initializes a new instance of the <see cref="RegionNavigationEventArgs"/> class.
        /// </summary>
        /// <param name="navigationContext">The navigation context.</param>
        public RegionNavigationEventArgs(NavigationContext navigationContext)
        {
            if (navigationContext == null) throw new ArgumentNullException("navigationContext");
            Contract.EndContractBlock();

            this.NavigationContext = navigationContext;
        }

 public bool IsNavigationTarget(NavigationContext navigationContext)
 {
     return true;
     // If you want to create multiple versions of this view then you need to set the 
     // PartCreationPolicy to NonShared and write code to determine if the view is 
     // a navigation target or not.
 }

        public void WhenRegionHasMultipleViews_ThenViewsWithMatchingTypeNameAreConsidered()
        {
            // Arrange

            var serviceLocatorMock = new Mock<IServiceLocator>();

            var region = new Region();

            var view1 = new TestView();
            var view2 = "view";

            region.Add(view1);
            region.Add(view2);

            var navigationContext = new NavigationContext(null, new Uri(view2.GetType().Name, UriKind.Relative));

            var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);


            // Act

            var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);


            // Assert

            Assert.AreSame(view2, returnedView);
        }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            ViewModel = (ImageViewModel)navigationContext.Parameters["viewModel"];
            DataContext = ViewModel;

            ViewModel.OnNavigatedTo(navigationContext);              
        }       

        public bool IsNavigationTarget( NavigationContext navigationContext )
        {
            // Called to see if this view can handle the navigation request. If it can, this view is activated.

            // This view is always the navigation target so return true.
            return true;
        }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            if (navigationContext.Parameters != null && navigationContext.Parameters.Any())
            {
                var dishes = navigationContext.Parameters["Dishes"] as List<DishViewModel>;

                if (dishes != null)
                    ViewModel = new OrderViewModel(dishes)
                    {
                        Repository = Repository,
                        NavigationService = navigationContext.NavigationService
                    };
                else
                    ViewModel = new OrderViewModel
                    {
                        Repository = Repository,
                        NavigationService = navigationContext.NavigationService
                    };

            }
            else
                ViewModel = new OrderViewModel
                {
                    Repository = Repository,
                    NavigationService = navigationContext.NavigationService
                };
        }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            _trackMenuBarToken = _eventAggregator.GetEvent<TrackCommandBarEvent>().Subscribe(OnTrackMenuBarEvent, true);
            _tracksMenuBarToken = _eventAggregator.GetEvent<TracksCommandBarEvent>().Subscribe(OnTracksMenuBarEvent, true);

            Album = navigationContext.Tag as IAlbum;
        }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            ViewModel = (GeotagFileBrowserViewModel)navigationContext.Parameters["viewModel"];
            DataContext = ViewModel;

            ViewModel.OnNavigatedTo(navigationContext);   
        }

        public void WhenViewExistsAndDoesNotImplementINavigationAware_ThenReturnsView()
        {
            // Arrange

            var serviceLocatorMock = new Mock<IServiceLocator>();

            var region = new Region();

            var view = new TestView();

            region.Add(view);

            var navigationContext = new NavigationContext(null, new Uri(view.GetType().Name, UriKind.Relative));

            var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);


            // Act

            var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);


            // Assert

            Assert.AreSame(view, returnedView);
        }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {            
            ViewModel = (MediaFileStackPanelViewModel)navigationContext.Parameters["viewModel"];
            DataContext = ViewModel;

            if (ViewModel == null)
            {
                collapseableGrid.Visibility = System.Windows.Visibility.Collapsed;
                collapseableButtonGrid.Visibility = System.Windows.Visibility.Collapsed;
                return;
            }
            else
            {
                Binding binding = new Binding();
                binding.Path = new PropertyPath("IsEnabled");
                binding.Converter = new BooleanToVisibilityConverter();
                binding.Source = ViewModel;  

                BindingOperations.SetBinding(collapseableButtonGrid, Grid.VisibilityProperty, binding);

                binding = new Binding();
                binding.Path = new PropertyPath("IsVisible");
                binding.Converter = new BooleanToVisibilityConverter();
                binding.Source = ViewModel;

                BindingOperations.SetBinding(collapseableGrid, Grid.VisibilityProperty, binding); 

            }

            if (ViewModel.IsEnabled == false) return;
                                       
            ViewModel.MediaStateCollectionView.Cleared += MediaStateCollectionView_Cleared;
            ViewModel.OnNavigatedTo(navigationContext);   
            
        }

 public void OnNavigatedFrom(NavigationContext navigationContext)
 {
     if (ViewModel != null)
     {
         ViewModel.MediaStateCollectionView.Cleared -= MediaStateCollectionView_Cleared;
         ViewModel.OnNavigatedFrom(navigationContext);
     }
 }

        public bool IsNavigationTarget( NavigationContext navigationContext )
        {
            // Called to see if this view can handle the navigation request. If it can, this view is activated.

            // Check the ID of the currently displayed item against the ID navigation parameter.
            string id = navigationContext.Parameters["ID"];
            return CurrentItem == null ? false : CurrentItem.Id.Equals( id );
        }

		public void ConfirmNavigationRequest(NavigationContext navigationContext, Action<bool> continuationCallback)
		{
			bool result = true;
			
			// TODO: Implement code to set result ...
			
			continuationCallback(result);
		}