/// <summary>
/// Evaulates the RRule component, and adds each specified Period
/// to the <see cref="Periods"/> collection.
/// </summary>
/// <param name="FromDate">The beginning date of the range to evaluate.</param>
/// <param name="ToDate">The end date of the range to evaluate.</param>
virtual protected void EvaluateRRule(IDateTime referenceDate, DateTime periodStart, DateTime periodEnd, bool includeReferenceDateInResults)
{
// Handle RRULEs
if (Recurrable.RecurrenceRules != null &&
Recurrable.RecurrenceRules.Count > 0)
{
foreach (IRecurrencePattern rrule in Recurrable.RecurrenceRules)
{
IEvaluator evaluator = rrule.GetService(typeof(IEvaluator)) as IEvaluator;
if (evaluator != null)
{
IList<IPeriod> periods = evaluator.Evaluate(referenceDate, periodStart, periodEnd, includeReferenceDateInResults);
foreach (IPeriod p in periods)
{
if (!Periods.Contains(p))
Periods.Add(p);
}
}
}
}
else if (includeReferenceDateInResults)
{
// If no RRULEs were found, then we still need to add
// the initial reference date to the results.
IPeriod p = new Period(referenceDate.Copy<IDateTime>());
if (!Periods.Contains(p))
Periods.Add(p);
}
}
public override IList<IPeriod> Evaluate(IDateTime referenceDate, DateTime periodStart, DateTime periodEnd, bool includeReferenceDateInResults)
{
List<IPeriod> periods = new List<IPeriod>();
if (includeReferenceDateInResults)
{
IPeriod p = new Period(referenceDate);
if (!periods.Contains(p))
periods.Add(p);
}
if (periodEnd < periodStart)
return periods;
foreach (IPeriod p in m_PeriodList)
{
if (!periods.Contains(p))
periods.Add(p);
}
return periods;
}
