/// <summary>
/// Return the date for Easter Sunday on the given year for the calendar.
/// </summary>
/// <param name="year">Calendar year</param>
/// <param name="calendar">Orthodox or Western calendar</param>
/// <returns>DateTime</returns>
public static DateTime GetEasterSunday(int year, EasterCalendar calendar = EasterCalendar.Western)
{
switch (calendar)
{
case EasterCalendar.Orthodox:
return(GetOrthodoxEaster(year));
case EasterCalendar.Western:
return(GetWesternEaster(year));
default:
throw new NotImplementedException();
}
}
/// <summary>
/// Returns the date range for all Easter Sundays between the start
/// and end years for the calendar.
/// </summary>
/// <param name="startYear"></param>
/// <param name="endYear"></param>
/// <param name="calendar"></param>
/// <returns></returns>
public static IEnumerable <DateTime> GetEasterSundays(int startYear, int endYear, EasterCalendar calendar = EasterCalendar.Western)
{
if (startYear > endYear)
{
throw new ArgumentException("endYear must be later than startYear.");
}
var list = new List <DateTime>();
for (var i = startYear; i <= endYear; i++)
{
var aDate = GetEasterSunday(i, calendar);
list.Add(aDate);
}
return(list);
}