System.Globalization.EastAsianLunisolarCalendar.CheckYearRange C# (CSharp) Method

        internal int CheckYearRange(int year, int era) {
         CheckEraRange(era);
         year = GetGregorianYear(year, era);

            if ((year < MinCalendarYear) || (year > MaxCalendarYear)) {
                throw new ArgumentOutOfRangeException(
                                "year",
                                String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("ArgumentOutOfRange_Range"), MinEraCalendarYear(era), MaxEraCalendarYear(era)));
            }
            return year;
        }