internal static bool TryParseDateTime(
StringReference s,
DateTimeZoneHandling dateTimeZoneHandling,
string dateFormatString,
CultureInfo culture,
out DateTime dt)
{
if (s.Length > 0)
{
int startIndex = s.StartIndex;
if (s[startIndex] == '/')
{
if (s.Length >= 9 && s.StartsWith("/Date(") &&
(s.EndsWith(")/") && DateTimeUtils.TryParseDateTimeMicrosoft(s, dateTimeZoneHandling, out dt)))
{
return(true);
}
}
else if (s.Length >= 19 && s.Length <= 40 && (char.IsDigit(s[startIndex]) && s[startIndex + 10] == 'T') &&
DateTimeUtils.TryParseDateTimeIso(s, dateTimeZoneHandling, out dt))
{
return(true);
}
if (!string.IsNullOrEmpty(dateFormatString) && DateTimeUtils.TryParseDateTimeExact(s.ToString(),
dateTimeZoneHandling, dateFormatString, culture, out dt))
{
return(true);
}
}
dt = new DateTime();
return(false);
}
internal static bool TryParseDateTime(
string s,
DateTimeZoneHandling dateTimeZoneHandling,
string dateFormatString,
CultureInfo culture,
out DateTime dt)
{
if (s.Length > 0)
{
if (s[0] == '/')
{
if (s.Length >= 9 && s.StartsWith("/Date(", StringComparison.Ordinal) &&
(s.EndsWith(")/", StringComparison.Ordinal) &&
DateTimeUtils.TryParseDateTimeMicrosoft(new StringReference(s.ToCharArray(), 0, s.Length),
dateTimeZoneHandling, out dt)))
{
return(true);
}
}
else if (s.Length >= 19 && s.Length <= 40 && (char.IsDigit(s[0]) && s[10] == 'T') && DateTime.TryParseExact(s,
"yyyy-MM-ddTHH:mm:ss.FFFFFFFK", (IFormatProvider)CultureInfo.InvariantCulture,
DateTimeStyles.RoundtripKind, out dt))
{
dt = DateTimeUtils.EnsureDateTime(dt, dateTimeZoneHandling);
return(true);
}
if (!string.IsNullOrEmpty(dateFormatString) &&
DateTimeUtils.TryParseDateTimeExact(s, dateTimeZoneHandling, dateFormatString, culture, out dt))
{
return(true);
}
}
dt = new DateTime();
return(false);
}