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Check this link<br />
<br />
<a href="http://stackoverflow.com/questions/4766845/yyyymmdd-date-format-regular-expression-to-validate-a-date-in-c-sharp-net" rel="ugc">http://stackoverflow.com/q<wbr />uestions/4<wbr />766845/yyy<wbr />ymmdd-date<wbr />-format-re<wbr />gular-expr<wbr />ession-to-<wbr />validate-a<wbr />-date-in-c<wbr />-sharp-net<wbr /></a>
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Check this link

http://stackoverflow.com/questions/4766845/yyyymmdd-date-format-regular-expression-to-validate-a-date-in-c-sharp-net [http://stackoverflow.com/questions/4766845/yyyymmdd-date-format-regular-expression-to-validate-a-date-in-c-sharp-net]

^([2-9]\d{3}((0[1-9]|1[012])(0[1-9]|1\d|2[0-8])|(0[13456789]|1[012])(29|30)|(0[13578]|1[02])31)|(([2-9]\d)(0[48]|[2468][048]|[13579][26])|(([2468][048]|[3579][26])00))0229)$

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DateTime.Now.ToString(&quot;yyy<wbr />yMMdd&quot;, System.Globalization.Cultu<wbr />reInfo.Get<wbr />CultureInf<wbr />o(&quot;en-US&quot;)<wbr />);<br />
<br />
Try above code. 
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DateTime.Now.ToString("yyyyMMdd", System.Globalization.CultureInfo.GetCultureInfo("en-US"));

Try above code.

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<div class="content wysiwyg-content">
Hi <br />
can you please say me how to do Regular Expression for yyyymmdd in c#.net<br />
<br />

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Hi 
can you please say me how to do Regular Expression for yyyymmdd in c#.net



Regular Expression for yyyymmdd in c#.net

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).