Ajax HtmlEditorExtender accepting empty spaces
<p>I am using an Ajax HtmlEditorExtender for Description field in my application.</p>

<p>My Sample Code:</p>

<pre><code>&lt;asp:TextBox ID="txtDescription" TextMode="MultiLine" Height="100" CssClass="text" runat="server" /&gt;
&lt;ajax:HtmlEditorExtender ID="HtmlEditorExtender2" TargetControlID="txtDescription" runat="server"&gt;
       &lt;Toolbar&gt;
            &lt;ajax:Bold /&gt;
            &lt;ajax:Italic /&gt;
            &lt;ajax:Underline /&gt;
            &lt;ajax:HorizontalSeparator /&gt;                    

             &lt;ajax:JustifyLeft /&gt;
             &lt;ajax:JustifyCenter /&gt;
             &lt;ajax:JustifyRight /&gt;  
             &lt;ajax:JustifyFull /&gt;
             &lt;ajax:HorizontalSeparator /&gt;

             &lt;ajax:InsertUnorderedList /&gt;
             &lt;ajax:ForeColorSelector /&gt;

        &lt;/Toolbar&gt;
 &lt;/ajax:HtmlEditorExtender&gt;
</code></pre>

<p>This description textbox is accepting empty spaces when i tried with space bar and enter key.
The Description field is mandatory and so it should not accept empty spaces. </p>

<p>I am unable to validate this control(<strong>txtDescription</strong>) using FilteredTextBoxExtender/RequiredFieldValidator/Javascript validation.</p>

<p>Help me out pls!!</p>
