// ----------------------------------------------------------------------
public int Compare(ITimePeriod left, ITimePeriod right)
{
ITimeInterval leftInterval = left as ITimeInterval;
ITimeInterval rightInterval = right as ITimeInterval;
int compare;
if (leftInterval != null && rightInterval != null)
{
compare = leftInterval.StartInterval.CompareTo(leftInterval.EndInterval);
}
else
{
compare = left.CompareTo(right, TimePeriodStartComparer.Comparer); // compare by start
//compare = left.CompareTo( right, TimePeriodDurationComparer.Comparer ); // compare by duration
}
return(compare);
} // Compare
