Required Field Validator Not Firing
<p>I'm having an issue with a standard ASP.NET page that has a TextBox and a RequiredFieldValidator.  The steps to reproduce are quite simple:</p>

<ol>
<li>Place a TextBox on a page</li>
<li>Place a RequiredFieldValidator on the page</li>
<li>Point the RequiredFieldValidator at the TextBox</li>
<li>Run the app</li>
<li>Tab away from the TextBox the RequiredFieldValidator does not show</li>
<li>Enter text, then delete the text and THEN tab away, the RequiredFieldValidator does show</li>
</ol>

<p>The RequiredFieldValidator works fine in both cases after a postback, however it seems the client-side code isn't firing until something is entered into the textbox (and then deleted).</p>

<p>Does anyone have a solution to this without hacking away at JavaScript myself?</p>
