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POWhy would DateTime.ParseExact fail with CultureInfo.CurrentCulture?
 

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  1. POWhy would DateTime.ParseExact fail with CultureInfo.CurrentCulture?
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    <p>I'm trying to parse dates with a given format and I've found this which I cannot explain:</p> <pre><code>var date = new DateTime(2001, 01, 10); var cultureInfo1 = CultureInfo.GetCultureInfo(CultureInfo.CurrentCulture.Name); var cultureInfo2 = new CultureInfo(CultureInfo.CurrentCulture.Name); Assert.AreEqual(date, DateTime.ParseExact("10/01/01", "dd/MM/yy", cultureInfo1)); Assert.Throws&lt;FormatException&gt;(() =&gt; DateTime.ParseExact("10/01/01", "dd/MM/yy", CultureInfo.CurrentCulture)); Assert.Throws&lt;FormatException&gt;(() =&gt; DateTime.ParseExact("10/01/01", "dd/MM/yy", cultureInfo2)); </code></pre> <p>Why would this call fail with the CurrentCulture, fail with a new instance created using the Culture name but not fail with a Culture obtained using GetCultureInfo(). The current culture is en-US and Windows is configured with this two changes (done in intl.cpl): use the Metric system, and short date format 'dd-MMM-yyyy'.</p> <p><strong>Update:</strong></p> <p>The original question was correctly answered, but I want to add that both cultures are able to parse the date. The problem seems to lie with the date separator specified in CultureInfo.DateTimeFormat.DateSeparator. </p> <p>The cultureInfo which has my overrides, has '-' as separator, while the original culture has '/'. </p> <p>To make ParseExact parse the date irrespective of the culture specified separator, the format spec should be changed from <strong>"dd/MM/yy"</strong> to <strong>"dd'/'MM'/'yy"</strong>.</p>
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    1. USPablo Montilla
    1. USPablo Montilla
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    1. COWhat culture is the current culture?
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      1. POWhy would DateTime.ParseExact fail with CultureInfo.CurrentCulture?
      1. USOded
    2. COThis is a bit noisy - could you simplify the code example (removing the successful tests) so that there's a single path that leads to a failing test?
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      1. POWhy would DateTime.ParseExact fail with CultureInfo.CurrentCulture?
      1. US48klocs
    3. COUntil and unless your culture is "GB" or so, it wouldn't work i guess.
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      1. USPraveen
 

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