WinRTXamlToolkit.Controls.Calendar.OnSelectedYearChanged C# (CSharp) Method

        private void OnSelectedYearChanged(DateTime? selectedYear)
        {
            if (selectedYear.HasValue)
            {
                Debug.Assert(DisplayMode == CalendarMode.Decade, "DisplayMode should be Decade!");
                SelectedYear = selectedYear.Value;
                UpdateMonths();
            }
        }