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;
}
