[Mono-bugs] [Bug 75916][Nor] Changed - FullDateTimePattern does not match that of MS.NET for most cultures

bugzilla-daemon at bugzilla.ximian.com bugzilla-daemon at bugzilla.ximian.com
Sun Aug 28 03:45:06 EDT 2005

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Changed by gert.driesen at pandora.be.


--- shadow/75916	2005-08-28 02:24:03.000000000 -0400
+++ shadow/75916.tmp.11689	2005-08-28 03:45:06.000000000 -0400
@@ -1,15 +1,15 @@
 Bug#: 75916
 Product: Mono: Runtime
 Version: 1.1
 OS: unknown
 OS Details: 
-Status: NEEDINFO   
+Status: REOPENED   
 Severity: Unknown
-Priority: Wishlist
+Priority: Normal
 Component: misc
 AssignedTo: mono-bugs at ximian.com                            
 ReportedBy: gert.driesen at pandora.be               
 QAContact: mono-bugs at ximian.com
 TargetMilestone: ---
@@ -301,6 +301,44 @@
 explain why those date/time strings needs to be fixed for every
 culture. Until this is done, I set the priority as wishlist.
 ------- Additional Comments From atsushi at ximian.com  2005-08-28 02:24 -------
 Moreover, the list does not show the fact. For example, we Japanese
 never use '?' for date and time.
+------- Additional Comments From gert.driesen at pandora.be  2005-08-28 03:45 -------
+So you're actually saying that for other patterns there are 
+mismatches between Mono and MS.NET too ? I can't see what the 
+purpose of that would be.
+Is compatibility and interoperability with MS.NET not a goal here ?
+What's the benefit of deliberately introducing interoperability 
+issues ?
+That aside, the FullDateTimePattern for most cultures is just plain 
+wrong, and results in a datetime string that is not parsable.
+Try running the following code snippet on Mono:
+CultureInfo cultureJp = new CultureInfo ("en-US");
+string date = DateTime.Now.ToString ("F", cultureJp);
+DateTime.Parse (date, cultureJp);
+Actual result:
+August 28, 2005 9:12:44 A +2
+Unhandled Exception: System.FormatException: String was not 
+recognized as a valid DateTime.
+in <0x000f1> System.DateTime:Parse (System.String s, IFormatProvider 
+fp, DateTimeStyles styles)
+in <0x00016> System.DateTime:Parse (System.String s, IFormatProvider 
+in <0x0018a> Test:Main ()
+Expect result:
+Sunday, August 28, 2005 9:14:36 AM
+(Resetting priority to normal ;-))

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