public Photos()
 {
     InitializeComponent();
     _photoStreamModel = new PhotoStreamModel();
     _photoStreamModel.PropertyChanged += PhotoStreamModel_PropertyChanged;
     _photoStreamModel.InitializePhotoCollection();
     DataContext = _photoStreamModel;
     _isInitialized = true;
     UpdateView();
 }
 public Photos()
 {
     InitializeComponent();
     _photoStreamModel = new PhotoStreamModel();
     _photoStreamModel.PropertyChanged += PhotoStreamModel_PropertyChanged;
     _photoStreamModel.InitializePhotoCollection();
     DataContext    = _photoStreamModel;
     _isInitialized = true;
     UpdateView();
 }