AddYears()

DateTime System.DateTime.AddYears ( int value )

inline

Definition at line 515 of file DateTime.cs.

    {
        if (value < -10000 || value > 10000)
        {
            throw new ArgumentOutOfRangeException("value", SR.ArgumentOutOfRange_DateTimeBadYears);
        }
        GetDate(out var year, out var month, out var day);
        int num = year + value;
        if (num < 1 || num > 9999)
        {
            ThrowDateArithmetic(0);
        }
        uint num2 = DaysToYear((uint)num);
        int num3 = month - 1;
        int num4 = day - 1;
        if (IsLeapYear(num))
        {
            num2 += s_daysToMonth366[num3];
        }
        else
        {
            if (num4 == 28 && num3 == 1)
            {
                num4--;
            }
            num2 += s_daysToMonth365[num3];
        }
        num2 += (uint)num4;
        return new DateTime(((ulong)((long)num2 * 864000000000L) + UTicks % 864000000000L) | InternalKind);
    }

References System.SR.ArgumentOutOfRange_DateTimeBadYears, System.DateTime, System.DateTime.DaysToYear(), System.Runtime.Serialization.Dictionary, System.DateTime.GetDate(), System.DateTime.InternalKind, System.DateTime.IsLeapYear(), System.L, System.DateTime.s_daysToMonth365, System.DateTime.s_daysToMonth366, System.DateTime.ThrowDateArithmetic(), System.DateTime.UTicks, System.value, and System.year.

Referenced by System.DateTimeOffset.AddYears(), and System.TimeZoneInfo.CheckIsDst().