protected override IEnumerable<Occurrence> GetNextOccurrences(Occurrence lastOccurrence, TimeSpan startTime, TimeSpan endTime)
{
DateTime startDate;
if (lastOccurrence != null)
{
startDate = lastOccurrence.Start.Date.Add(startTime).AddDays(Interval);
}
else
{
startDate = StartDate.Date.Add(startTime);
if (StartDate > startDate)
{
startDate = StartDate;
}
}
if (IsWeekday)
{
while (startDate.DayOfWeek == System.DayOfWeek.Saturday || startDate.DayOfWeek == System.DayOfWeek.Sunday)
{
startDate = startDate.AddDays(1);
}
}
DateTime endDate = startDate.Date.Add(endTime);
if (startDate <= endDate)
{
if (EndDate.HasValue && endDate >= EndDate.Value)
{
yield return new Occurrence(startDate, EndDate.Value);
}
else
{
yield return new Occurrence(startDate, endDate);
}
}
}
protected override IEnumerable<Occurrence> GetNextOccurrences(Occurrence lastOccurrence, TimeSpan startTime, TimeSpan endTime)
{
DateTime startDate;
if (lastOccurrence != null)
{
startDate = lastOccurrence.Start.Date.Add(startTime).AddDays(1 - lastOccurrence.Start.Day).AddYears(Interval);
}
else
{
startDate = StartDate.Date.Add(startTime);
startDate = StartDate > startDate
? StartDate.AddDays(1 - startDate.Day)
: startDate.AddDays(1 - startDate.Day);
if (startDate.Month > (int)Month || (startDate.Month == (int)Month && startDate.Day > DayOfMonth))
{
startDate = startDate.AddDays(1 - startDate.Day).AddMonths((int)Month - startDate.Month).AddYears(1);
}
}
int daysInMonth = DateTime.DaysInMonth(startDate.Year, startDate.Month);
startDate = startDate.AddDays(((daysInMonth < DayOfMonth) ? daysInMonth : DayOfMonth) - 1);
DateTime endDate = startDate.Date.Add(endTime);
if (startDate <= endDate)
{
if (EndDate.HasValue && endDate >= EndDate.Value)
{
yield return new Occurrence(startDate, EndDate.Value);
}
else
{
yield return new Occurrence(startDate, endDate);
}
}
}
protected override IEnumerable<Occurrence> GetNextOccurrences(Occurrence lastOccurrence, TimeSpan startTime, TimeSpan endTime)
{
DateTime startDate;
if (lastOccurrence != null)
{
startDate = lastOccurrence.Start.Date.Add(startTime).AddDays(7 * Interval);
}
else
{
startDate = StartDate.Date.Add(startTime);
if (StartDate > startDate)
{
startDate = StartDate;
}
}
while (startDate.DayOfWeek != FirstDayOfWeek)
{
startDate = startDate.AddDays(-1);
}
do
{
DateTime endDate = startDate.Date.Add(endTime);
if (startDate <= endDate)
{
if (SPRecurrenceHelper.IsDayOfWeekMatched(DaysOfWeek, startDate))
{
if (EndDate.HasValue && endDate >= EndDate.Value)
{
yield return new Occurrence(startDate, EndDate.Value);
}
else
{
yield return new Occurrence(startDate, endDate);
}
}
}
startDate = startDate.AddDays(1);
} while (startDate.DayOfWeek != FirstDayOfWeek);
}
protected override IEnumerable<Occurrence> GetNextOccurrences(Occurrence lastOccurrence, TimeSpan startTime, TimeSpan endTime)
{
DateTime startDate;
if (lastOccurrence != null)
{
startDate = lastOccurrence.Start.Date.Add(startTime).AddDays(1 - lastOccurrence.Start.Day).AddYears(Interval);
}
else
{
startDate = StartDate.Date.Add(startTime);
startDate = StartDate > startDate
? StartDate.AddDays(1 - startDate.Day)
: startDate.AddDays(1 - startDate.Day);
if (startDate.Month > (int)Month)
{
startDate = startDate.AddDays(1 - startDate.Day).AddMonths((int)Month - startDate.Month).AddYears(1);
}
}
var days = SPRecurrenceHelper.GetMatchedDays(startDate, DayOfWeekOrdinal, DayOfWeek).ToArray();
foreach (int day in days)
{
startDate = startDate.AddDays(day - startDate.Day);
DateTime endDate = startDate.Date.Add(endTime);
if (startDate <= endDate)
{
if (EndDate.HasValue && endDate >= EndDate.Value)
{
yield return new Occurrence(startDate, EndDate.Value);
}
else
{
yield return new Occurrence(startDate, endDate);
}
}
}
}
protected abstract IEnumerable<Occurrence> GetNextOccurrences(Occurrence lastOccurrence, TimeSpan startTime, TimeSpan endTime);