private int CalcYears()
{
if (TimeCompare.IsSameMonth(Date1, Date2))
{
return(0);
}
int compareDay = Date2.Day;
int compareDaysPerMonth = Calendar.GetDaysInMonth(Year1, Month2);
if (compareDay > compareDaysPerMonth)
{
compareDay = compareDaysPerMonth;
}
DateTime compareDate = new DateTime(Year1, Month2, compareDay,
Date2.Hour, Date2.Minute, Date2.Second, Date2.Millisecond);
if (Date2 > Date1)
{
if (compareDate < Date1)
{
compareDate = compareDate.AddYears(1);
}
}
else
{
if (compareDate > Date1)
{
compareDate = compareDate.AddYears(-1);
}
}
return(Year2 - Calendar.GetYear(compareDate));
}
private int CalcQuarters()
{
if (TimeCompare.IsSameMonth(Date1, Date2))
{
return(0);
}
int year1 = TimeTool.GetYearOf(YearBaseMonth, Year1, Month1);
YearQuarter quarter1 = TimeTool.GetQuarterOfMonth(YearBaseMonth, (YearMonth)Month1);
int year2 = TimeTool.GetYearOf(YearBaseMonth, Year2, Month2);
YearQuarter quarter2 = TimeTool.GetQuarterOfMonth(YearBaseMonth, (YearMonth)Month2);
return
(((year2 * TimeSpec.QuartersPerYear) + quarter2) -
((year1 * TimeSpec.QuartersPerYear) + quarter1));
}