Moore) wrote:

>Hello Fred. I'm the development owner of the DateTime class.
>
>I could not come up with an exlplanation for what you were seeing, so I got
>your repro and debugged it. I think you have found a valid bug in the
>product and I have fixed it for the next release (Whidbey).
>
>The problem is that ParseExact cannot parse a value like "-5:00" for the
>"zzz" format. It requires two leading digits like so: "-05:00". This is a
>bug, because DateTime.Parse will accept a single leading digit, and the
>ISO8601 allows it also.
>
>Hopefully passing in "-05:00" can be an effective work-around to unblock
>you here. In general, Parse and Exact are good at round-tripping a value
>the exact same way that it is formatted by ToString. If you are having
>trouble with a format, try calling ToString on the format to determine what
>it is looking for.
>
>Thanks very much for asking the question. It allows us to make the product
>better, and will help you determine if it is pilot error. I hope this does
>not inconvience you too much.
>
>Anthony.
>
>--------------------
>| From: Fred Strauss <frauss@comcast.net>
>| Subject: Problem with DateTime.ParseExact
>| Date: Fri, 12 Dec 2003 08:30:32 -0500
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>|
>| I am having an odd problem using the DateTime.ParseExact() method that
>| I'm hoping someone can help me with.
>|
>| I have XML files that use 2 different date formats internally. I am
>| trying to use the same call to ParseExact to parse either format. I am
>| using C# to call the following form of ParseExact:
>|
>| public static DateTime ParseExact(string, string[], IFormatProvider,
>| DateTimeStyles);
>|
>| Examples of the 2 formats I'm passing in the source string are:
>|
>| 20031211T151302Z
>|
>| and
>|
>| 2003-12-03T16:32:00-5:00
>|
>| The format strings I'm passing in the 2nd argument are defined with:
>|
>| private string[] sDateFormats = new string[] {"yyyyMMdd\\THHmmss\\Z",
>| "yyyy\\-MM\\-dd\\THH:mm:sszzz"};
>|
>| The problem is that when I attempt to parse dates in the 2nd format a
>| FormatException is thrown.
>|
>| Any help is greatly appreciated
>|
>| Fred Strauss
>| Project Manager
>| Associated Press
>| 212-621-1968
>| fred_strauss@ap.org
>|
>|
>|
>|