private RecurrencePattern CreateMonthlyRecurrence(Recurrence icalRecurrence, ExDateTime start, CalendarType calendarType)
{
RecurrencePattern result = null;
if (icalRecurrence.ByDayList == null && icalRecurrence.BySetPosition == null)
{
int dayOfMonth = (icalRecurrence.ByMonthDay != null) ? icalRecurrence.ByMonthDay[0] : start.Day;
result = new MonthlyRecurrencePattern(dayOfMonth, icalRecurrence.Interval, calendarType);
}
else if (icalRecurrence.ByDayList != null && icalRecurrence.ByMonthDay == null)
{
DaysOfWeek daysOfWeek = VItemBase.DaysOfWeekFromByDayList(icalRecurrence.ByDayList, start);
int occurrenceNumber = icalRecurrence.ByDayList[0].OccurrenceNumber;
RecurrenceOrderType?recurrenceOrderType = null;
if (icalRecurrence.BySetPosition != null)
{
if (occurrenceNumber == 0 && icalRecurrence.BySetPosition[0] >= -1 && icalRecurrence.BySetPosition[0] <= 4 && icalRecurrence.BySetPosition[0] != 0)
{
recurrenceOrderType = new RecurrenceOrderType?((RecurrenceOrderType)icalRecurrence.BySetPosition[0]);
}
}
else if (occurrenceNumber != 0)
{
recurrenceOrderType = new RecurrenceOrderType?((RecurrenceOrderType)occurrenceNumber);
}
if (recurrenceOrderType != null)
{
result = new MonthlyThRecurrencePattern(daysOfWeek, recurrenceOrderType.Value, icalRecurrence.Interval, calendarType);
}
}
return(result);
}
private RecurrencePattern CreateWeeklyRecurrence(Recurrence icalRecurrence, ExDateTime start)
{
RecurrencePattern result;
if (icalRecurrence.ByDayList != null)
{
DaysOfWeek daysOfWeek = VItemBase.DaysOfWeekFromByDayList(icalRecurrence.ByDayList, start);
result = new WeeklyRecurrencePattern(daysOfWeek, icalRecurrence.Interval, icalRecurrence.WorkWeekStart);
}
else
{
result = new WeeklyRecurrencePattern((DaysOfWeek)(1 << (int)start.DayOfWeek), icalRecurrence.Interval, icalRecurrence.WorkWeekStart);
}
return(result);
}