AddMonths()

override DateTime System.Globalization.GregorianCalendar.AddMonths ( DateTime time, int months )

inline

Definition at line 109 of file GregorianCalendar.cs.

    {
        if (months < -120000 || months > 120000)
        {
            throw new ArgumentOutOfRangeException("months", months, SR.Format(SR.ArgumentOutOfRange_Range, -120000, 120000));
        }
        time.GetDate(out var year, out var month, out var day);
        int num = month - 1 + months;
        if (num >= 0)
        {
            month = num % 12 + 1;
            year += num / 12;
        }
        else
        {
            month = 12 + (num + 1) % 12;
            year += (num - 11) / 12;
        }
        int[] array = ((year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)) ? DaysToMonth366 : DaysToMonth365);
        int num2 = array[month] - array[month - 1];
        if (day > num2)
        {
            day = num2;
        }
        long ticks = DateToTicks(year, month, day) + time.Ticks % 864000000000L;
        Calendar.CheckAddResult(ticks, MinSupportedDateTime, MaxSupportedDateTime);
        return new DateTime(ticks);
    }

References System.SR.ArgumentOutOfRange_Range, System.array, System.Globalization.Calendar.CheckAddResult(), System.DateTime, System.Globalization.GregorianCalendar.DateToTicks(), System.Globalization.GregorianCalendar.DaysToMonth365, System.Globalization.GregorianCalendar.DaysToMonth366, System.SR.Format(), System.DateTime.GetDate(), System.L, System.Globalization.GregorianCalendar.MaxSupportedDateTime, System.Globalization.GregorianCalendar.MinSupportedDateTime, and System.year.

Referenced by System.Globalization.GregorianCalendar.AddYears().