/// <summary>
/// Apply a Style to a GlobalCalendarDayButton.
/// </summary>
/// <param name="button">The button.</param>
internal void ApplyDayButtonStyle(GlobalCalendarDayButton button)
{
Debug.Assert(button != null, "button should not be null!");
DateTime? date = button.GetDateNullable();
CalendarDayButtonStyleSelector selector = CalendarDayButtonStyleSelector;
Style style = CalendarDayButtonStyle;
button.Style = (selector != null && date != null) ?
selector.SelectStyle(date.Value, button) ?? style :
style;
}
