<div>
By &quot;No more than two characters can repeat&quot; I interpret this as allowing:<br />
abababab1&amp;<br />
but not<br />
aaababa1&amp;<br />
<br />
Try this (I'm just about to test it now though!):<br />
^(?=.*[-`~!@#$%\^&amp;*()_+=\[<wbr />\]{}\\|;':<wbr />&quot;,./&lt;&gt;?])(<wbr />?=.*\d)(?=<wbr />.*[A-Z])(?<wbr />!.*?(.)\1\<wbr />1)).{8,}
</div>


By "No more than two characters can repeat" I interpret this as allowing:
abababab1&
but not
aaababa1&

Try this (I'm just about to test it now though!):
^(?=.*[-`~!@#$%\^&*()_+=\[\]{}\\|;':",./<>?])(?=.*\d)(?=.*[A-Z])(?!.*?(.)\1\1)).{8,}

<div>
After testing, I needed to make a minor change. This appears to work:<br />
^(?=.*[-`~!@\#$%\^&amp;*()_+=\<wbr />[\]{}\\|;'<wbr />:&quot;,./&lt;&gt;?])<wbr />(?=.*\d)(?<wbr />=.*[A-Z])(<wbr />?:(?!(.)\1<wbr />\1).){8,}$<wbr />
</div>


After testing, I needed to make a minor change. This appears to work:
^(?=.*[-`~!@\#$%\^&*()_+=\[\]{}\\|;':",./<>?])(?=.*\d)(?=.*[A-Z])(?:(?!(.)\1\1).){8,}$

<div>
Thank you both for your assistance. This is exactly what I needed.
</div>


Thank you both for your assistance. This is exactly what I needed.

<div>
<div class="content wysiwyg-content">
The requirements for the expression are:<br />
- No more than two characters can repeat<br />
- Minimum size of 8 characters<br />
- Must contain a least one upper case character<br />
- Must contain a least one special character<br />
- Must contain at least one numeric digit<br />
<br />
I have already tried Reglib but am not familiar enough with them to create this expression. Any suggestions?<br />
<br />
Thank you for your help
</div>
</div>


The requirements for the expression are:
- No more than two characters can repeat
- Minimum size of 8 characters
- Must contain a least one upper case character
- Must contain a least one special character
- Must contain at least one numeric digit

I have already tried Reglib but am not familiar enough with them to create this expression. Any suggestions?

Thank you for your help

I need help with a .NET Regex password expression

A regular expression ("regex") is a sequence of characters that define a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. "find and replace"-like operations. Regular expression processors are found in several search engines, search and replace dialogs of several word processors and text editors, and in the command lines of text processing utilities, such as sed and AWK. Many programming languages provide regular expression capabilities, some built-in, for example Perl, JavaScript, Ruby, AWK, and Tcl, and others via a standard library, for example .NET languages, Java, Python and C++ (since C++11). Most other languages offer regular expressions via a library.

Regular Expressions

The .NET Framework is not specific to any one programming language; rather, it includes a library of functions that allows developers to rapidly build applications. Several supported languages include C#, VB.NET, C++ or ASP.NET.

.NET Programming

Visual Basic .NET (VB.NET) is an object-oriented programming language implemented on the .NET framework, but also supported on other platforms such as Mono and Silverlight. Microsoft launched VB.NET as the successor to the Visual Basic language. Though it is similar in syntax to  Visual Basic pre-2002, it is not the same technology,