public ITimePeriodCollection GetHalfyears()
{
TimePeriodCollection halfyears = new TimePeriodCollection();
for (int i = 0; i < YearCount; i++)
{
for (int halfyear = 0; halfyear < TimeSpec.HalfyearsPerYear; halfyear++)
{
int year;
YearHalfyear yearHalfyear;
TimeTool.AddHalfyear(_startYear, YearHalfyear.First, (i * TimeSpec.HalfyearsPerYear) + halfyear, out year, out yearHalfyear);
halfyears.Add(new Halfyear(year, yearHalfyear, Calendar));
}
}
return(halfyears);
}