<div>
the \w is looking for new words (separated by spaces) additionally the first character must be alpha - hence this is failing.<br />
<br />
what requirements do you have exactly - ie must contain numbers and letters? / be a certain length / ?
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the \w is looking for new words (separated by spaces) additionally the first character must be alpha - hence this is failing.

what requirements do you have exactly - ie must contain numbers and letters? / be a certain length / ?

<div>
thanks for getting back to us.<br />
<br />
we just want a expression for numbers and letters .<br />
we already have a regex for length.
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thanks for getting back to us.

we just want a expression for numbers and letters .
we already have a regex for length.

<div>
You can check the regex online <a href="http://mem9.net/dev/regextester.aspx" rel="ugc">http://mem9.net/dev/regextester.aspx</a>
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You can check the regex online http://mem9.net/dev/regextester.aspx [http://mem9.net/dev/regextester.aspx]

<div>
sumix's solution would fit your requirements properly.
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sumix's solution would fit your requirements properly.

<div>
<div class="content wysiwyg-content">
Hi,<br />
<br />
I am looking for help as to why this reg. ex does not behave as expected: <br />
<br />
<br />
&nbsp; &nbsp; &nbsp;ValidationExpression=&quot;[a-z<wbr />A-Z]+\w*\d<wbr />+\w*&quot;<br />
<br />
<br />
We would like a regex that allows a password like &quot;9sj4n3xa65aa&quot; to pass ok!<br />
<br />
Would love your help.<br />
<br />
Cheers.
</div>
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Hi,

I am looking for help as to why this reg. ex does not behave as expected: 


     ValidationExpression="[a-zA-Z]+\w*\d+\w*"


We would like a regex that allows a password like "9sj4n3xa65aa" to pass ok!

Would love your help.

Cheers.

Simple password letter/number regular expression.

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).