public Appointment Parse(IList <string> stringValue, DateTime start, DateTime end)
{
iCalendarEntryParser parser = new iCalendarEntryParser();
iCalendarEntryContainer entryContainer = parser.ParseString(String.Join("\n", stringValue.ToArray()));
this.rule = entryContainer.GetPropertyValue <VRecurrenceRule>(RecurrenceRuleProperty.TokenName);
if (this.rule == null)
{
return(null);
}
Appointment pattern = Storage.CreateAppointment(AppointmentType.Pattern);
pattern.Start = start;
pattern.End = end;
iCalendarHelper.ApplyRecurrenceInfo(pattern.RecurrenceInfo, start, rule);
ExceptionDateTimesProperty exceptionProperty = entryContainer.GetProperty(ExceptionDateTimesProperty.TokenName) as ExceptionDateTimesProperty;
if (exceptionProperty != null)
{
exceptionProperty.ApplyTimeZone();
OccurrenceCalculator calculator = OccurrenceCalculator.CreateInstance(pattern.RecurrenceInfo);
foreach (var item in exceptionProperty.Values)
{
int indx = calculator.FindOccurrenceIndex(item, pattern);
if (indx < 0)
{
continue;
}
pattern.CreateException(AppointmentType.DeletedOccurrence, indx);
}
}
return(pattern);
}
int CalculateOccurrenceIndex(Appointment pattern, EventDateTime originalStartTime)
{
OccurrenceCalculator calculator = OccurrenceCalculator.CreateInstance(pattern.RecurrenceInfo);
return(calculator.FindOccurrenceIndex(ConvertDateTime(originalStartTime), pattern));
}