Hi,
Following code should give the number of weeks in years 1998-2010 for a
Danish calendar (on a Danish box)
GregorianCalend ar cal = new GregorianCalend ar();
for(int i = 1998; i < 2010; i++)
{
DateTime date = new DateTime(i, 12, 31);
int week= cal.GetWeekOfYe ar(date,
CalendarWeekRul e.FirstFourDayW eek,
DayOfWeek.Monda y);
Debug.WriteLine ( String.Format(" Last week in year {0:0} = {1:0}", date.Year,
week));
}
Last week in year 1998 = 53 - OK
Last week in year 1999 = 52 - OK
Last week in year 2000 = 52 - OK
Last week in year 2001 = 53 - Wrong, only 52
Last week in year 2002 = 53 - Wrong, only 52
Last week in year 2003 = 53 - Wrong, only 52
Last week in year 2004 = 53 - OK
Last week in year 2005 = 52 - OK
Last week in year 2006 = 52 - OK
Last week in year 2007 = 53 - Wrong, only 52
Last week in year 2008 = 53 - Wrong, only 52
Last week in year 2009 = 53 - Wrong, only 52
Does anyone see the same pattern as I, and do anyone know why this happens
??
Kind regards, and thanx in advance...
Soren 3 5477
I got the same result on a Swedish box and I used the beta to compile it
with.
---
Microsoft (R) Visual C# .NET Compiler version 8.00.40607.42
for Microsoft (R) Windows (R) .NET Framework version 2.0.40607
Copyright (C) Microsoft Corporation 2001-2003. All rights reserved.
---
Regards
Tony Schon
Soren Jorgensen wrote: Hi,
Following code should give the number of weeks in years 1998-2010 for a Danish calendar (on a Danish box)
GregorianCalend ar cal = new GregorianCalend ar(); for(int i = 1998; i < 2010; i++) { DateTime date = new DateTime(i, 12, 31); int week= cal.GetWeekOfYe ar(date, CalendarWeekRul e.FirstFourDayW eek, DayOfWeek.Monda y); Debug.WriteLine ( String.Format(" Last week in year {0:0} = {1:0}", date.Year, week)); }
Last week in year 1998 = 53 - OK Last week in year 1999 = 52 - OK Last week in year 2000 = 52 - OK Last week in year 2001 = 53 - Wrong, only 52 Last week in year 2002 = 53 - Wrong, only 52 Last week in year 2003 = 53 - Wrong, only 52 Last week in year 2004 = 53 - OK Last week in year 2005 = 52 - OK Last week in year 2006 = 52 - OK Last week in year 2007 = 53 - Wrong, only 52 Last week in year 2008 = 53 - Wrong, only 52 Last week in year 2009 = 53 - Wrong, only 52
Does anyone see the same pattern as I, and do anyone know why this happens ??
Kind regards, and thanx in advance...
Soren
Soren Jorgensen wrote: Hi,
Following code should give the number of weeks in years 1998-2010 for a Danish calendar (on a Danish box)
GregorianCalend ar cal = new GregorianCalend ar(); for(int i = 1998; i < 2010; i++) { DateTime date = new DateTime(i, 12, 31); int week= cal.GetWeekOfYe ar(date, CalendarWeekRul e.FirstFourDayW eek, DayOfWeek.Monda y); Debug.WriteLine ( String.Format(" Last week in year {0:0} = {1:0}", date.Year, week)); }
Last week in year 1998 = 53 - OK Last week in year 1999 = 52 - OK Last week in year 2000 = 52 - OK Last week in year 2001 = 53 - Wrong, only 52 Last week in year 2002 = 53 - Wrong, only 52 Last week in year 2003 = 53 - Wrong, only 52 Last week in year 2004 = 53 - OK Last week in year 2005 = 52 - OK Last week in year 2006 = 52 - OK Last week in year 2007 = 53 - Wrong, only 52 Last week in year 2008 = 53 - Wrong, only 52 Last week in year 2009 = 53 - Wrong, only 52
Does anyone see the same pattern as I, and do anyone know why this happens ??
Kind regards, and thanx in advance...
Soren
When I look up the weeknumbers in my calendar (dutch, same rules as you used),
dec 31, 2004 is reported as week 1 (of 2004).
Week 52 of 2003 ends on sunday dec 28, so a result of 53 for dec 31 can be
explained (but is still wrong).
Maybe you need to change your algorithm: is dec 31 a monday through wednesday,
then look a week earier for the last "legal" weeknumber.
Hans Kesting
Hans Kesting wrote: Soren Jorgensen wrote: Hi,
Following code should give the number of weeks in years 1998-2010 for a Danish calendar (on a Danish box)
GregorianCalend ar cal = new GregorianCalend ar(); for(int i = 1998; i < 2010; i++) { DateTime date = new DateTime(i, 12, 31); int week= cal.GetWeekOfYe ar(date, CalendarWeekRul e.FirstFourDayW eek, DayOfWeek.Monda y); Debug.WriteLine ( String.Format(" Last week in year {0:0} = {1:0}", date.Year, week)); }
Last week in year 1998 = 53 - OK Last week in year 1999 = 52 - OK Last week in year 2000 = 52 - OK Last week in year 2001 = 53 - Wrong, only 52 Last week in year 2002 = 53 - Wrong, only 52 Last week in year 2003 = 53 - Wrong, only 52 Last week in year 2004 = 53 - OK Last week in year 2005 = 52 - OK Last week in year 2006 = 52 - OK Last week in year 2007 = 53 - Wrong, only 52 Last week in year 2008 = 53 - Wrong, only 52 Last week in year 2009 = 53 - Wrong, only 52
Does anyone see the same pattern as I, and do anyone know why this happens ??
Kind regards, and thanx in advance...
Soren When I look up the weeknumbers in my calendar (dutch, same rules as you used), dec 31, 2004 is reported as week 1 (of 2004).
sorry, typo: of course that should have been "dec 31, 2003" that is in week 1 of 2004
Week 52 of 2003 ends on sunday dec 28, so a result of 53 for dec 31 can be explained (but is still wrong).
Maybe you need to change your algorithm: is dec 31 a monday through wednesday, then look a week earier for the last "legal" weeknumber.
Hans Kesting This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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