<div>
HI<br />
<br />
This should be OK<br />

<pre><code id="code-476561">&quot;[a-zA-Z .,()]+&quot;
</code></pre>
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HI

This should be OK


"[a-zA-Z .,()]+"


<div>
I also want specal characters?<br />
&quot;,,,,,,,,,,,,,,,,.........<wbr />..........<wbr />.....&quot;
</div>


I also want specal characters?
",,,,,,,,,,,,,,,,........................"

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<div class="content wysiwyg-content">
&lt;asp:RegularExpressionVali<wbr />dator ID=&quot;REVtxtHeadLine&quot; runat=&quot;server&quot; ControlToValidate=&quot;txtHead<wbr />Line&quot;<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Font-Size=&quot;X-Small&quot; SetFocusOnError=&quot;true&quot; ValidationExpression=&quot;^[a-<wbr />zA-Z]{1}[a<wbr />-zA-Z]{1,7<wbr />4}$&quot;<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ErrorMessage=&quot;&lt;b&gt;A valid HeadLineis required,&lt;/b&gt;&lt;br /&gt;Please type between 2 to 128 letters&lt;br /&gt;(One Line Sentence)&quot;<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Display=&quot;None&quot;&gt;&lt;/asp:Regul<wbr />arExpressi<wbr />onValidato<wbr />r&gt;<br />
<br />
Shoud be aloud spaces, periods and commons, bracket any charact except something that can screw up database.
</div>
</div>


<asp:RegularExpressionValidator ID="REVtxtHeadLine" runat="server" ControlToValidate="txtHeadLine"
                                Font-Size="X-Small" SetFocusOnError="true" ValidationExpression="^[a-zA-Z]{1}[a-zA-Z]{1,74}$"
                                ErrorMessage="<b>A valid HeadLineis required,</b><br />Please type between 2 to 128 letters<br />(One Line Sentence)"
                                Display="None"></asp:RegularExpressionValidator>

Shoud be aloud spaces, periods and commons, bracket any charact except something that can screw up database.

Regular expression for Headline

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).