public override void ItemSelected(UICollectionView collectionView, NSIndexPath indexPath)
        {
            var pvc = new PageViewController();

            pvc.controllerPage = pages.ElementAt(indexPath.Row);

            NavigationController.PushViewController(pvc, true);
        }
		public override void ItemSelected (UICollectionView collectionView, NSIndexPath indexPath)
		{
			var pvc = new PageViewController ();

			pvc.controllerPage = pages.ElementAt (indexPath.Row);

			NavigationController.PushViewController (pvc, true);
		}