/// <summary>
/// Common PropertyChangedCallback for dependency properties that trigger visual state changes
/// </summary>
/// <param name="dObject"></param>
/// <param name="e"></param>
private static void OnVisualStatePropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
CalendarDayButton dayButton = sender as CalendarDayButton;
if (dayButton != null)
{
dayButton.ChangeVisualState(true);
}
}
private void SetMonthModeDayButtonState(CalendarDayButton childButton, DateTime?dateToAdd)
{
if (this.Owner != null)
{
if (dateToAdd.HasValue)
{
childButton.Visibility = Visibility.Visible;
// If the day is outside the DisplayDateStart/End boundary, do not show it
if (DateTimeHelper.CompareDays(dateToAdd.Value, this.Owner.DisplayDateStartInternal) < 0 || DateTimeHelper.CompareDays(dateToAdd.Value, this.Owner.DisplayDateEndInternal) > 0)
{
childButton.IsEnabled = false;
childButton.Visibility = Visibility.Hidden;
}
else
{
childButton.IsEnabled = true;
// SET IF THE DAY IS SELECTABLE OR NOT
childButton.SetValue(
CalendarDayButton.IsBlackedOutPropertyKey,
this.Owner.BlackoutDates.Contains(dateToAdd.Value));
// SET IF THE DAY IS ACTIVE OR NOT: set if the day is a trailing day or not
childButton.SetValue(
CalendarDayButton.IsInactivePropertyKey,
DateTimeHelper.CompareYearMonth(dateToAdd.Value, this.Owner.DisplayDateInternal) != 0);
// SET IF THE DAY IS TODAY OR NOT
if (DateTimeHelper.CompareDays(dateToAdd.Value, DateTime.Today) == 0)
{
childButton.SetValue(CalendarDayButton.IsTodayPropertyKey, true);
// Calendar.IsTodayHighlighted affects the final visual state for Today buttons
// but childButton property change callbacks are no called in response to
// Calendar.IsTodayHighlighted changing so we must explicitly update the visual state
childButton.ChangeVisualState(true);
}
else
{
childButton.SetValue(CalendarDayButton.IsTodayPropertyKey, false);
}
// SET IF THE DAY IS SELECTED OR NOT
// Since we should be comparing the Date values not DateTime values, we can't use this.Owner.SelectedDates.Contains(dateToAdd) directly
bool isSelected = false;
foreach (DateTime item in this.Owner.SelectedDates)
{
isSelected |= (DateTimeHelper.CompareDays(dateToAdd.Value, item) == 0);
}
childButton.SetValue(CalendarDayButton.IsSelectedPropertyKey, isSelected);
}
}
else
{
childButton.Visibility = Visibility.Hidden;
childButton.IsEnabled = false;
childButton.SetValue(CalendarDayButton.IsBlackedOutPropertyKey, false);
childButton.SetValue(CalendarDayButton.IsInactivePropertyKey, true);
childButton.SetValue(CalendarDayButton.IsTodayPropertyKey, false);
childButton.SetValue(CalendarDayButton.IsSelectedPropertyKey, false);
}
}
}
private void SetMonthModeDayButtonState(CalendarDayButton childButton, DateTime? dateToAdd)
{
if (this.Owner != null)
{
if (dateToAdd.HasValue)
{
childButton.Visibility = Visibility.Visible;
// If the day is outside the DisplayDateStart/End boundary, do not show it
if (DateTimeHelper.CompareDays(dateToAdd.Value, this.Owner.DisplayDateStartInternal) < 0 || DateTimeHelper.CompareDays(dateToAdd.Value, this.Owner.DisplayDateEndInternal) > 0)
{
childButton.IsEnabled = false;
childButton.Visibility = Visibility.Hidden;
}
else
{
childButton.IsEnabled = true;
// SET IF THE DAY IS SELECTABLE OR NOT
childButton.SetValue(
CalendarDayButton.IsBlackedOutPropertyKey,
this.Owner.BlackoutDates.Contains(dateToAdd.Value));
// SET IF THE DAY IS ACTIVE OR NOT: set if the day is a trailing day or not
childButton.SetValue(
CalendarDayButton.IsInactivePropertyKey,
DateTimeHelper.CompareYearMonth(dateToAdd.Value, this.Owner.DisplayDateInternal) != 0);
// SET IF THE DAY IS TODAY OR NOT
if (DateTimeHelper.CompareDays(dateToAdd.Value, DateTime.Today) == 0)
{
childButton.SetValue(CalendarDayButton.IsTodayPropertyKey, true);
// Calendar.IsTodayHighlighted affects the final visual state for Today buttons
// but childButton property change callbacks are no called in response to
// Calendar.IsTodayHighlighted changing so we must explicitly update the visual state
childButton.ChangeVisualState(true);
}
else
{
childButton.SetValue(CalendarDayButton.IsTodayPropertyKey, false);
}
// SET IF THE DAY IS SELECTED OR NOT
// Since we should be comparing the Date values not DateTime values, we can't use this.Owner.SelectedDates.Contains(dateToAdd) directly
bool isSelected = false;
foreach (DateTime item in this.Owner.SelectedDates)
{
isSelected |= (DateTimeHelper.CompareDays(dateToAdd.Value, item) == 0);
}
childButton.SetValue(CalendarDayButton.IsSelectedPropertyKey, isSelected);
}
}
else
{
childButton.Visibility = Visibility.Hidden;
childButton.IsEnabled = false;
childButton.SetValue(CalendarDayButton.IsBlackedOutPropertyKey, false);
childButton.SetValue(CalendarDayButton.IsInactivePropertyKey, true);
childButton.SetValue(CalendarDayButton.IsTodayPropertyKey, false);
childButton.SetValue(CalendarDayButton.IsSelectedPropertyKey, false);
}
}
}