title: Validation of Combobox, radio buttons, regular buttons etc?
body: <p>I am using the ErrorMessage control on my form to validate things like Edit Boxes.  Works great.  The little gray alert type box pops up when data entry is needed.</p>
  
  <p>Can anyone point me to an example of how I can do the same for radio buttons, combo boxes etc?  Or even a regular button (say I have a add document button on the form).</p>
  
  <p>I really don't care how the message is actually displayed.  I would just like for my validation to be consistent across validation of all of my components.   In other words I  do not want some server side and some client side validation.</p>
  
  <p>Any examples out there?  I have been using my own validation using a ext lib dialog box, that has worked well,  but I was hoping for something easier to implement.</p>