protected override void LoadState(Object navigationParameter, Dictionary <String, Object> pageState) { // Get the selected Book Group from Navigation parameter & data bind. GroupedApressBooks selectedGroup = (GroupedApressBooks)((App)Application.Current).FeaturedBookListVM.GroupedFeaturedApressBooks.First(X => X.ApressBookGroupName == navigationParameter); this.DefaultViewModel["BookGroup"] = selectedGroup; this.DefaultViewModel["BookItems"] = selectedGroup.BookCollection; }
protected override void LoadState(Object navigationParameter, Dictionary <String, Object> pageState) { // Allow saved page state to override the initial item to display. if (pageState != null && pageState.ContainsKey("SelectedItem")) { navigationParameter = pageState["SelectedItem"]; } // Get the selected Book Item from Navigation parameter. ApressBook selectedBook = (ApressBook)((App)Application.Current).FeaturedBookListVM.FeaturedApressBooks.First(X => X.ApressBookISBN == navigationParameter); // Also fetch the corresponding Technology Group. GroupedApressBooks selectedGroup = (GroupedApressBooks)((App)Application.Current).FeaturedBookListVM.GroupedFeaturedApressBooks.First(X => X.ApressBookGroupName == selectedBook.ApressBookTechnology); this.DefaultViewModel["BookGroup"] = selectedGroup; this.DefaultViewModel["BookItems"] = selectedGroup.BookCollection; this.flipView.SelectedItem = selectedBook; }