| public static IsSameMonth ( System.DateTime left, System.DateTime right ) : bool | ||
| left | System.DateTime | |
| right | System.DateTime | |
| return | bool | |
} // Round
// ----------------------------------------------------------------------
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));
} // CalcYears
} // CalcYears
// ----------------------------------------------------------------------
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));
} // CalcQuarters