示例#1
0
        /// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="navigationParameter">The parameter value passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested.
        /// </param>
        /// <param name="pageState">A dictionary of state preserved by this page during an earlier
        /// session.  This will be null the first time a page is visited.</param>
        protected override async void LoadState(Object navigationParameter, Dictionary<String, Object> pageState)
        {
            // Allow saved page state to override the initial item to display
            if (pageState != null && pageState.ContainsKey("DataContext"))
            {
                _viewModel = (FolderViewModel)pageState["DataContext"];
            }
            else if (navigationParameter is FileActivatedEventArgs)
            {
                await _viewModel.Initialize((FileActivatedEventArgs)navigationParameter);
            }

#if !DEBUG 
            // To make debugging easier this code is only included in release mode
            if (!_viewModel.ContainsPictures)
            {
                await ShowWarningAndClose();
            }
#endif
        }
示例#2
0
 public MainPage()
 {
     this.InitializeComponent();
     _viewModel = new FolderViewModel();
     DataContext = _viewModel;
 }