public void FillHijriMonths(TimeInterval visibleInterval)
{
DateTime start = visibleInterval.Start;
DateTime visibleEnd = visibleInterval.End;
TimeInterval currentMonthInterval = CreateCurrentMonthInterval(start);
HijriMonths.BeginUpdate();
try {
HijriMonths.Clear();
HijriMonths.Add(currentMonthInterval);
start = currentMonthInterval.End;
for (;;)
{
if (start >= visibleEnd)
{
break;
}
DateTime end = HijriCalendar.AddMonths(start, 1);
if (end > visibleEnd)
{
end = visibleEnd;
}
TimeInterval interval = new TimeInterval(start, end);
HijriMonths.Add(interval);
start = interval.End;
}
} finally {
HijriMonths.EndUpdate();
}
}
public bool IsOddHijriMonths(TimeInterval timeInterval)
{
Predicate <TimeInterval> intervalMatch = delegate(TimeInterval interval) {
return(interval.IntersectsWith(timeInterval));
};
TimeInterval monthInterval = HijriMonths.Find(intervalMatch);
if (monthInterval == null)
{
return(false);
}
if (HijriMonths.IndexOf(monthInterval) % 2 != 0)
{
return(true);
}
return(false);
}