| static private EnsureDateTime ( System.DateTime value, DateTimeZoneHandling timeZone ) : System.DateTime | ||
| value | System.DateTime | |
| timeZone | DateTimeZoneHandling | |
| return | System.DateTime | |
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", 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);
}
internal static bool TryParseDateIso(string text, DateParseHandling dateParseHandling, DateTimeZoneHandling dateTimeZoneHandling, out object dt)
{
DateTimeParser dateTimeParser = default(DateTimeParser);
if (!dateTimeParser.Parse(text))
{
dt = null;
return(false);
}
DateTime dateTime = new DateTime(dateTimeParser.Year, dateTimeParser.Month, dateTimeParser.Day, dateTimeParser.Hour, dateTimeParser.Minute, dateTimeParser.Second);
dateTime = dateTime.AddTicks((long)dateTimeParser.Fraction);
if (dateParseHandling != DateParseHandling.DateTimeOffset)
{
switch (dateTimeParser.Zone)
{
case ParserTimeZone.Utc:
dateTime = new DateTime(dateTime.Ticks, DateTimeKind.Utc);
break;
case ParserTimeZone.LocalWestOfUtc:
{
TimeSpan timeSpan = new TimeSpan(dateTimeParser.ZoneHour, dateTimeParser.ZoneMinute, 0);
long num = dateTime.Ticks + timeSpan.Ticks;
if (num <= DateTime.MaxValue.Ticks)
{
dateTime = new DateTime(num, DateTimeKind.Utc).ToLocalTime();
}
else
{
num += dateTime.GetUtcOffset().Ticks;
if (num > DateTime.MaxValue.Ticks)
{
num = DateTime.MaxValue.Ticks;
}
dateTime = new DateTime(num, DateTimeKind.Local);
}
break;
}
case ParserTimeZone.LocalEastOfUtc:
{
TimeSpan timeSpan2 = new TimeSpan(dateTimeParser.ZoneHour, dateTimeParser.ZoneMinute, 0);
long num = dateTime.Ticks - timeSpan2.Ticks;
if (num >= DateTime.MinValue.Ticks)
{
dateTime = new DateTime(num, DateTimeKind.Utc).ToLocalTime();
}
else
{
num += dateTime.GetUtcOffset().Ticks;
if (num < DateTime.MinValue.Ticks)
{
num = DateTime.MinValue.Ticks;
}
dateTime = new DateTime(num, DateTimeKind.Local);
}
break;
}
}
dt = DateTimeUtils.EnsureDateTime(dateTime, dateTimeZoneHandling);
return(true);
}
TimeSpan utcOffset;
switch (dateTimeParser.Zone)
{
case ParserTimeZone.Utc:
utcOffset = new TimeSpan(0L);
break;
case ParserTimeZone.LocalWestOfUtc:
utcOffset = new TimeSpan(-dateTimeParser.ZoneHour, -dateTimeParser.ZoneMinute, 0);
break;
case ParserTimeZone.LocalEastOfUtc:
utcOffset = new TimeSpan(dateTimeParser.ZoneHour, dateTimeParser.ZoneMinute, 0);
break;
default:
utcOffset = TimeZoneInfo.Local.GetUtcOffset(dateTime);
break;
}
long num2 = dateTime.Ticks - utcOffset.Ticks;
if (num2 < 0L || num2 > 3155378975999999999L)
{
dt = null;
return(false);
}
dt = new DateTimeOffset(dateTime, utcOffset);
return(true);
}
internal static bool TryParseDateTimeIso(StringReference text, DateTimeZoneHandling dateTimeZoneHandling, out DateTime dt)
{
long ticks;
TimeSpan utcOffset;
DateTimeParser dateTimeParser = new DateTimeParser();
if (!dateTimeParser.Parse(text.Chars, text.StartIndex, text.Length))
{
dt = new DateTime();
return(false);
}
DateTime dateTime = DateTimeUtils.CreateDateTime(dateTimeParser);
switch (dateTimeParser.Zone)
{
case ParserTimeZone.Utc:
{
dateTime = new DateTime(dateTime.Ticks, DateTimeKind.Utc);
break;
}
case ParserTimeZone.LocalWestOfUtc:
{
TimeSpan timeSpan = new TimeSpan(dateTimeParser.ZoneHour, dateTimeParser.ZoneMinute, 0);
ticks = dateTime.Ticks + timeSpan.Ticks;
if (ticks > DateTime.MaxValue.Ticks)
{
utcOffset = dateTime.GetUtcOffset();
ticks += utcOffset.Ticks;
if (ticks > DateTime.MaxValue.Ticks)
{
ticks = DateTime.MaxValue.Ticks;
}
dateTime = new DateTime(ticks, DateTimeKind.Local);
break;
}
else
{
dateTime = (new DateTime(ticks, DateTimeKind.Utc)).ToLocalTime();
break;
}
}
case ParserTimeZone.LocalEastOfUtc:
{
TimeSpan timeSpan1 = new TimeSpan(dateTimeParser.ZoneHour, dateTimeParser.ZoneMinute, 0);
ticks = dateTime.Ticks - timeSpan1.Ticks;
if (ticks < DateTime.MinValue.Ticks)
{
utcOffset = dateTime.GetUtcOffset();
ticks += utcOffset.Ticks;
if (ticks < DateTime.MinValue.Ticks)
{
ticks = DateTime.MinValue.Ticks;
}
dateTime = new DateTime(ticks, DateTimeKind.Local);
break;
}
else
{
dateTime = (new DateTime(ticks, DateTimeKind.Utc)).ToLocalTime();
break;
}
}
}
dt = DateTimeUtils.EnsureDateTime(dateTime, dateTimeZoneHandling);
return(true);
}
