public void CameraSelectionChanged(object sender, SelectionChangedEventArgs e) { GridView gridView = sender as GridView; if (gridView != null) { if (gridView.ItemsSource == this.CameraViewModel.Cameras) { CameraViewModel.SelectionChanged(sender, e); OnVifCamera camera = CameraViewModel.getSelectedCamera(); if (camera != null) { CameraFrame.Navigate(typeof(OnVifSingleCameraPage), camera); } } } }