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POC#: Get all week numbers from within 2 dates globalized/ISO 8601 compatible
 

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  1. POC#: Get all week numbers from within 2 dates globalized/ISO 8601 compatible
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    <p>I have a </p> <p><em>startdate</em> <strong>2010-01-01</strong> (I just assume its a first day of the week)</p> <p>and an</p> <p><em>enddate</em> <strong>2010-07-31</strong> (I just assume its a first day of the week)</p> <p>I want to have returned from a method all week numbers for every first day of the week for the </p> <p>above timespan. I can not assume that the first day of week is always monday, because my user </p> <p>could be from <strong>Sweden</strong>, <strong>USA</strong> or whereever. The algorythm should be compatible with ISO 8601.</p> <p>The final result should look roughly like this:</p> <pre><code>2010-01-01 , 1 2010-01-08 , 2 2010-01-15 , 3 2010-01-22 , 4 ... 2010-07-31 , ~28 </code></pre> <p>Yes I know google is full of links about that topic but nobody is doing it right. They all </p> <p>assume that monday is first day of a week. Maybe some of the c# gods on SO pass by :P</p> <p>EDIT:</p> <p>What do you say to this code:</p> <pre><code>public static int GetWeekNumber(DateTime dtPassed) { CultureInfo ciCurr = CultureInfo.CurrentCulture; int weekNum = ciCurr.Calendar.GetWeekOfYear(dtPassed, CalendarWeekRule.FirstDay, DateTimeFormatInfo.CurrentInfo.FirstDayOfWeek); return weekNum; } </code></pre> <p>I found it partly on google and changed it a bit.</p>
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    1. USJoe Doyle
    1. USElisabeth
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    1. COThat's more or less where I was going with my answer. You beat me to it ;)
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      1. USKevin Stricker
 

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