ChangePassword control, Text required error message does not appear
<p>I have a ChangePassword control on a page like thus:</p>

<pre><code>&lt;asp:ChangePassword ID="ChangePassword1" runat="server" 
NewPasswordRegularExpressionErrorMessage="Password must be atleast 8 characters, containing upper &amp; lowercase, numeric and special characters." 
ConfirmPasswordRequiredErrorMessage="Confirm Password is Required." 
PasswordLabelText="Current Password:" OnChangedPassword="ChangePassword1_ChangedPassword"&gt;
&lt;/asp:ChangePassword&gt;
</code></pre>

<p>When the page runs if the user leaves the Confirm Password textbox blank, then the page displays a red * next to the textbox but no error message. Same thing happens for the other textboxes.</p>

<p>However if the user doesn't meet the Regular Expression rule then the error message set at NewPasswordRegularExpressionErrorMessage is displayed (I'm setting the regex value in the code behind).</p>

<p>I've tried adding a ValidationSummary and pointing it at ChangePassword1 control but no change.</p>

<p>How do I get an error message to display if the user leaves textboxes empty?</p>
