private void startApplication()
{
// Load and show the MainWindow
MainWindow main = new MainWindow();
Navigator.NavigationService = main.NavigationFrame.NavigationService;
//MainWindowViewModel has to be initialized after navigationService is set otherwise the
//MainWindowViewModel tries to use an instance of NavigationService per the PageNavigation class
//before it is initialized and returns a null reference to navigationservice
MainWindowViewModel vm = new MainWindowViewModel();
main.DataContext = vm;
main.Show();
}
public void NavigatePage(string _pageName)
{
_navigationStack.Add(_pageName);
MessageBox.Show("added " + _pageName + " to stack");
CurrentPage = _pageName;
switch (_pageName)
{
case "Main":
if (Main == null)
{
MainVM = new MainWindowViewModel();
Main = new MainWindow();
}
Main.DataContext = MainVM;
Navigator.NavigationService.Navigate(Main);
break;
case "Home":
if (Home == null)
{
HomeVM = new HomeViewModel();
Home = new Home();
}
Home.DataContext = HomeVM;
Navigator.NavigationService.Navigate(Home);
break;
case "MOVIES":
if (MOVIES == null)
{
MediaVM = new MediaViewModel(_pageName);
MOVIES = new Media();
}
MOVIES.DataContext = MediaVM;
Navigator.NavigationService.Navigate(MOVIES);
break;
case "TV SHOWS":
if (TV == null)
{
TVVM = new MediaViewModel(_pageName);
TV = new Media();
}
TV.DataContext = TVVM;
Navigator.NavigationService.Navigate(TV);
break;
}
}