DateTime TryParseExact rejecting valid formats

Question

I m parsing a DateTime value in an ASP NET WebForms page and the date string keeps getting rejected by the DateTime TryParseExact   method even though it clearly matches one of the supplied format strings    It seems to fail on my development machine at home but work on the production server  so I am thinking of local date settings being involved  but this error occurs even when I supply an IFormatProvider  CultureInfo  object as a parameter  Here s the code   DateTime startDate  string   formats      dd MM yyyy    dd M yyyy    d M yyyy    d MM yyyy                        dd MM yy    dd M yy    d M yy    d MM yy     var errStart   row FindControl  errStartDate      my date format error message if   DateTime TryParseExact txtStartDate Text  formats  null  DateTimeStyles None  out startDate         errStart Visible   true    we get here even with a string like  20 08 2012      return false    else       errStart Visible   false      Note I m giving a null FormatProvider in the above  but the same problem occurs when I provide a CultureInfo object as  CultureInfo provider   new CultureInfo  en-US    for this parameter   What am I missing

User · Answer

Try C  7 0  var Dob  DateTime TryParseExact s  YourDateString format   yyyyMMdd  provider  null style  0 out var dt     dt   DateTime Parse  1800-01-01

User · Answer

Here  you can check for couple of things     Date formats you are using correctly  You can provide more than one format for DateTime TryParseExact  Check the complete list of formats  available here    CultureInfo InvariantCulture which is more likely add problem  So instead of passing a NULL value or setting it to CultureInfo provider   new CultureInfo  en-US    you may write it like     if   DateTime TryParseExact txtStartDate Text  formats                   System Globalization CultureInfo InvariantCulture                  System Globalization DateTimeStyles None  out startDate           your condition fail code goes here     return false    else         success code

User · Answer

Try    DateTime TryParseExact txtStartDate Text  formats           System Globalization CultureInfo InvariantCulture          System Globalization DateTimeStyles None  out startDate

User · Answer

string DemoLimit    02 28 2018    string pattern    MM dd yyyy    CultureInfo enUS   new CultureInfo  en-US      DateTime TryParseExact DemoLimit  pattern  enUS                        DateTimeStyles AdjustToUniversal  out datelimit     For more https   msdn microsoft com en-us library ms131044 v vs 110  aspx

User · Answer

This is the Simple method  Use ParseExact  CultureInfo provider   CultureInfo InvariantCulture  DateTime result  String dateString    Sun 08 Jun 2013 8 30 AM -06 00   String format    ddd dd MMM yyyy h mm tt zzz   result   DateTime ParseExact dateString  format  provider     This should work for you

[c#] DateTime.TryParseExact() rejecting valid formats

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