System.DateTimeParse.ParseExact C# (CSharp) Méthode

        internal static DateTime ParseExact(String s, String format, DateTimeFormatInfo dtfi, DateTimeStyles style) {
            DateTimeResult result = new DateTimeResult();       // The buffer to store the parsing result.
            result.Init();
            if (TryParseExact(s, format, dtfi, style, ref result)) {
                return result.parsedDate;
            }
            else {
                throw GetDateTimeParseException(ref result);
            }
        }

        public static DateTimeOffset ParseExact(ReadOnlySpan <char> input, ReadOnlySpan <char> format, IFormatProvider?formatProvider, DateTimeStyles styles = DateTimeStyles.None)
        {
            styles = ValidateStyles(styles, nameof(styles));
            DateTime dateResult = DateTimeParse.ParseExact(input, format, DateTimeFormatInfo.GetInstance(formatProvider), styles, out TimeSpan offset);

            return(new DateTimeOffset(dateResult.Ticks, offset));
        }