public void DeSelectCell()
 {
     dayView.RemoveFromSuperview();
     day.isSelected = false;
     dayView        = new DayView(day, frame);
     ContentView.AddSubview(dayView);
 }
        public void Create(DayStructure dayOfMonth, NSIndexPath indexPath, UICollectionView collectionView)
        {
            this.day = dayOfMonth;

            dayView = new DayView(dayOfMonth, frame);
            if (dayOfMonth.isSelected)
            {
                collectionView.SelectItem(indexPath, true, UICollectionViewScrollPosition.CenteredVertically);
            }
            ContentView.AddSubview(dayView);
        }