System.DateTimeParse.SetDateYMD C# (CSharp) Method

        private static bool SetDateYMD(ref DateTimeResult result, int year, int month, int day)
        {
            // Note, longer term these checks should be done at the end of the parse. This current
            // way of checking creates order dependence with parsing the era name.
            if (result.calendar.IsValidDay(year, month, day, result.era)) 
            {
                result.SetDate(year, month, day);                           // YMD
                return (true);
            }
            return (false);
        }