Bug 3245 - DateTimeOffset.ParseExact throws "Invalid format string" for round-trip format
Summary: DateTimeOffset.ParseExact throws "Invalid format string" for round-trip format
Alias: None
Product: Class Libraries
Classification: Mono
Component: mscorlib ()
Version: 2.10.x
Hardware: PC Windows
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2012-02-06 19:42 UTC by Andreas Sommer
Modified: 2012-09-11 10:26 UTC (History)
4 users (show)

Is this bug a regression?: ---
Last known good build:

Demo of the problem (1.28 KB, text/plain)
2012-02-06 19:42 UTC, Andreas Sommer

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Description Andreas Sommer 2012-02-06 19:42:56 UTC
Created attachment 1320 [details]
Demo of the problem

Please have a look at the attached example program. It contains multiple examples that don't work, and a working example with Parse instead of ParseExact. This is probably related to #992 ("DateTime.ParseExact disregards valid format string").

ParseExact with the format string "o" (roundtrip format) throws the FormatException "Invalid format string". As there are multiple throw statements with the same message, I couldn't find out from the 2.10.8 source code what the problem seems to be.
Comment 1 Marek Safar 2012-02-07 05:15:04 UTC
Already fixed in master