public static double CalculateTarget(int month, DateTime?onboardDate, DateTime?offboardDate, double target)
{
double calculatedTarget = 0d;
DateTime date = DateTimeUtility.GetDate(month);
int currentMonth = date.Month;
int currentYear = date.Year;
int MonthlyDays = DateTime.DaysInMonth(currentYear, currentMonth);
int startDay = 1;
int endDay = MonthlyDays;
//如果入职日期在12号之前，指标按日历数比例计算
if (onboardDate != null && onboardDate.Value.Month == currentMonth && onboardDate.Value.Year == currentYear && onboardDate.Value.Day < 12)
{
startDay = onboardDate.Value.Day;
}
//如果入职日期之前的月份，或者在12号之后，指标为0
if ((onboardDate != null && onboardDate.Value.Month > currentMonth && onboardDate.Value.Year >= currentYear) ||
(onboardDate != null && onboardDate.Value.Month == currentMonth && onboardDate.Value.Year == currentYear && onboardDate.Value.Day >= 12))
{
startDay = endDay + 1;
}
//if(offboardDate != null && offboardDate.Value.Month == currentMonth && onboardDate.Value.Year == currentYear)
//{
// endDay = offboardDate.Value.Day;
//}
calculatedTarget = target * (endDay - startDay + 1) / (MonthlyDays);
return(calculatedTarget);
}
