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Try this:<br><pre><code class="code-1 nolinks" id="code-20-43315885-1"><span>ValidationExpression="^(\s)*[a-zA-Z0-9_\s]{2,8}(\s)*$"</span>
</code></pre>Or<br><pre><code class="code-1 nolinks" id="code-20-43315885-2"><span>ValidationExpression="^(\s)*[\w\s]{2,8}(\s)*$"</span>
</code></pre><br><br>
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None of your regex works.<br>The rule is: &nbsp;A minimum of 2 and a maximum of 8 Alpha characters (no numbers) and whitespaces in between the characters are allowed. &nbsp;For example, these are allowed:<br>"abcdefgh" - this has a maximum of 8 Alpha characters (no numbers)<br>"ab de gh" - this has a maximum of 8 Alpha characters (no numbers) w/ whitespaces in between<br>" abcdefgh " - this has a maximum of 8 Alpha characters (no numbers) with 1 or more leading &amp; trailing spaces<br>" ab de gh " - this has a maximum of 8 Alpha characters (no numbers) w/ whitespaces in between but has 1 or more leading &amp; trailing spaces<br>"ab" - this has a minimum of 2 Alpha characters (no numbers)<br>" ab " - this has a minimum of 2 Alpha characters (no numbers) with 1 or more leading &amp; trailing spaces<br><br><br>
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Applications Developer

Bobby X

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Hi,<br><br>I am looking for a regular expression that validates to ensure that a min. of 2 and max. of 8 alpha characters (including spaces) are allowed without counting any leading and trailing spaces. Following regular expression doesn't seem to work (see ValidationExpression below). &nbsp;Could someone please tell me what am I missing and provide a correct regex for this?<br><br>&lt;asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtProductName" CssClass="ErrorMessage" Display="Dynamic" ValidationExpression="^[^\s]+[a-zA-Z\s]{2,8}[^\s]+$" ErrorMessage="Minimum 2 and maximum 8 characters allowed." SetFocusOnError="True" /&gt;<br><br>Many thanks in advance.<br><br><br>
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Hi,
I am looking for a regular expression that validates to ensure that a min. of 2 and max. of 8 alpha characters (including spaces) are allowed without counting any leading and trailing spaces. Following regular expression doesn't seem to work (see ValidationExpression below).  Could someone please tell me what am I missing and provide a correct regex for this?
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtProductName" CssClass="ErrorMessage" Display="Dynamic" ValidationExpression="^[^\s]+[a-zA-Z\s]{2,8}[^\s]+$" ErrorMessage="Minimum 2 and maximum 8 characters allowed." SetFocusOnError="True" />
Many thanks in advance.

ASP.Net RegularExpression Validators

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 successor to Active Server Pages, ASP.NET websites utilize the .NET framework to produce dynamic, data and content-driven web applications and services. ASP.NET code can be written using any .NET supported language. As of 2009, ASP.NET can also apply the Model-View-Controller (MVC) pattern to web applications