<div>
Hi,<br />
<br />
For minimum 10 chaacter you need to change 1 in your regex to 10,<br />
<br />
[\s\S]{10,400}<br />
<br />
check link below ,<br />
<a href="http://social.msdn.microsoft.com/Forums/en-US/Vsexpressvb/thread/e6411823-f932-4cc2-a8b3-e409df91ea68" rel="ugc nofollow">http://social.msdn.microsoft.com/Forums/en-US/Vsexpressvb/thread/e6411823-f932-4cc2-a8b3-e409df91ea68</a><br />
<br />
Thanks
</div>


Hi,

For minimum 10 chaacter you need to change 1 in your regex to 10,

[\s\S]{10,400}

check link below ,
http://social.msdn.microsoft.com/Forums/en-US/Vsexpressvb/thread/e6411823-f932-4cc2-a8b3-e409df91ea68 [http://social.msdn.microsoft.com/Forums/en-US/Vsexpressvb/thread/e6411823-f932-4cc2-a8b3-e409df91ea68]

Thanks

<div>
you can try use a custom validator instead.<br />
<br />
<a href="http://www.w3schools.com/ASPNET/showasp.asp?filename=demo_customvalidator" rel="ugc">http://www.w3schools.com/ASPNET/showasp.asp?filename=demo_customvalidator</a>
</div>


you can try use a custom validator instead.

http://www.w3schools.com/ASPNET/showasp.asp?filename=demo_customvalidator [http://www.w3schools.com/ASPNET/showasp.asp?filename=demo_customvalidator]

<div>
i changed it to 10 but the textbox took even with 0
</div>


i changed it to 10 but the textbox took even with 0

<div>
when the textbox has 0 characters in it, the error does not appear. &nbsp;the error appears with 1-9 characters.
</div>


when the textbox has 0 characters in it, the error does not appear.  the error appears with 1-9 characters.

<div>
very smart idea. &nbsp;combine with a required field.
</div>


very smart idea.  combine with a required field.

<div>
<div class="content wysiwyg-content">
 &nbsp; &lt;asp:RegularExpressionVali<wbr />dator ID=&quot;RegularExpressionValid<wbr />ator2&quot; runat=&quot;server&quot; ControlToValidate=&quot;txtInfo<wbr />&quot;<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Display=&quot;Dynamic&quot; ErrorMessage=&quot;Please enter a description between 10 and 400 characters&quot;<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ValidationExpression=&quot;[\s\<wbr />S]{1,400}&quot;<wbr /> style=&quot;position: relative;&quot; Width=&quot;393px&quot; Height=&quot;50px&quot;&gt;&lt;/asp:Regula<wbr />rExpressio<wbr />nValidator<wbr />&gt;<br />
<br />
This works for max characters, but how to make it work for minimum characters as well?
</div>
</div>


   <asp:RegularExpressionValidator ID="RegularExpressionValidator2" runat="server" ControlToValidate="txtInfo"
                    Display="Dynamic" ErrorMessage="Please enter a description between 10 and 400 characters"
                    ValidationExpression="[\s\S]{1,400}" style="position: relative;" Width="393px" Height="50px"></asp:RegularExpressionValidator>

This works for max characters, but how to make it work for minimum characters as well?

Text box validator:  min and max characters ASP.NET

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

ASP.NET

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.