title: Can I fire an Event when I tab out of a textbox without entering a value?
body: <p>I have an <code>ASP.NET Webform (C#)</code> that has a textbox on it. I would like to know if there is a way to fire an event when the user tabs off the textbox without entering a value?</p>
  
  <p>I set <code>Autopostback=True</code> and <code>CauseValidation=true</code>. If i enter anything in the textbox it fires the <code>TextChanged</code> event which is fine. But if they tab without entering anything nothing happens.</p>
  
  <p>Any Ideas?</p>
  
  <p>thank you </p>