/// <summary>
/// Evalates the ExDate component, and excludes each specified DateTime or
/// Period from the <see cref="DateTimes"/> 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 EvaluateExDate(Date_Time FromDate, Date_Time ToDate)
{
// Handle EXDATEs
if (ExDate != null)
{
foreach (RDate exdate in ExDate)
{
ArrayList Items = exdate.Evaluate(DTStart, FromDate, ToDate);
foreach (object obj in Items)
{
Date_Time dt = null;
if (obj is Period)
{
dt = ((Period)obj).StartTime;
}
else if (obj is Date_Time)
{
dt = (Date_Time)obj;
}
if (dt != null)
{
while (DateTimes.Contains(dt))
{
DateTimes.Remove(dt);
}
}
}
}
}
}
/// <summary>
/// Evalates the RDate component, and adds each specified DateTime or
/// Period to the <see cref="DateTimes"/> 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 EvaluateRDate(Date_Time FromDate, Date_Time ToDate)
{
// Handle RDATEs
if (RDate != null)
{
foreach (RDate rdate in RDate)
{
ArrayList Items = rdate.Evaluate(DTStart, FromDate, ToDate);
foreach (object obj in Items)
{
Date_Time dt = null;
if (obj is Period)
{
dt = ((Period)obj).StartTime;
}
else if (obj is Date_Time)
{
dt = (Date_Time)obj;
}
if (dt != null && !DateTimes.Contains(dt))
{
DateTimes.Add(dt);
}
}
}
}
}