private void SetYearButtons(DateTime decade, DateTime decadeEnd)
{
int decadeYear = _calendar.GetYear(decade);
int decadeEndYear = _calendar.GetYear(decadeEnd);
int year;
int count = -1;
foreach (object child in _yearView.Children)
{
CalendarButton childButton = child as CalendarButton;
Debug.Assert(childButton != null);
year = decadeYear + count;
if (year <= _calendar.MaxSupportedDateTime.Year && year >= _calendar.MinSupportedDateTime.Year)
{
// There should be no time component. Time is 12:00 AM
DateTime day = _calendar.ToDateTime(year, 1, 1, 0, 0, 0, 0);
childButton.DataContext = day;
childButton.SetContentInternal(DateTimeHelper.ToYearString(day, DateTimeHelper.GetCulture(this)));
childButton.Visibility = Visibility.Visible;
if (Owner != null)
{
childButton.HasSelectedDays = (_calendar.GetYear(Owner.DisplayDate) == year);
if (year < Owner.DisplayDateStartInternal.Year || year > Owner.DisplayDateEndInternal.Year)
{
childButton.IsEnabled = false;
childButton.Opacity = 0;
}
else
{
childButton.IsEnabled = true;
childButton.Opacity = 1;
}
}
// SET IF THE YEAR IS INACTIVE OR NOT: set if the year is a trailing year or not
childButton.IsInactive = year <decadeYear || year> decadeEndYear;
}
else
{
childButton.DataContext = null;
childButton.IsEnabled = false;
childButton.Opacity = 0;
}
count++;
}
}
private void SetYearModeMonthButtons()
{
int count = 0;
foreach (object child in _yearView.Children)
{
CalendarButton childButton = child as CalendarButton;
Debug.Assert(childButton != null);
// There should be no time component. Time is 12:00 AM
int year = _calendar.GetYear(DisplayDate);
int month = count + 1;
DateTime day = _calendar.ToDateTime(year, month, 1, 0, 0, 0, 0);
childButton.DataContext = day;
childButton.SetContentInternal(DateTimeHelper.ToAbbreviatedMonthString(day, DateTimeHelper.GetCulture(this)));
childButton.Visibility = Visibility.Visible;
if (Owner != null)
{
Debug.Assert(Owner.DisplayDateInternal != null);
childButton.HasSelectedDays = (DateTimeHelper.CompareYearMonth(day, Owner.DisplayDateInternal) == 0);
if (DateTimeHelper.CompareYearMonth(day, Owner.DisplayDateStartInternal) < 0 || DateTimeHelper.CompareYearMonth(day, Owner.DisplayDateEndInternal) > 0)
{
childButton.IsEnabled = false;
childButton.Opacity = 0;
}
else
{
childButton.IsEnabled = true;
childButton.Opacity = 1;
}
}
childButton.IsInactive = false;
count++;
}
}