protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);
            dropdown    = new XuniDropDown(this);
            header      = new XuniMaskedTextView(this);
            header.Mask = "00/00/0000";

            calendar                   = new XuniCalendar(this);
            dropdown.Header            = header;
            dropdown.Dropdown          = calendar;
            dropdown.DropDownHeight    = 400;
            dropdown.Animated          = true;
            calendar.SelectionChanged += SelectionChanged;

            this.SetContentView(dropdown);
        }
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);
            dropdown = new XuniDropDown(this);
		    header = new XuniMaskedTextView(this);
		    header.Mask="00/00/0000";

		    calendar = new XuniCalendar(this);
		    dropdown.Header=header;
		    dropdown.Dropdown=calendar;
			dropdown.DropDownHeight = 400;
		    dropdown.Animated=true;
            calendar.SelectionChanged += SelectionChanged;

		    this.SetContentView(dropdown);
           
         }