title: Instantly update a textbox in InfoPath 2007
body: <p>I'm trying to create an input form similar to a text message. I have a large textbox for the message, and I have a small textbox that is read-only that I want to show the character count.</p>
  
  <p>I got this to work by setting the default value of the small textbook to the string length of the large textbox. This works correctly, but I would like to update the small textbox every time a character is entered into the large textbox, not every time I click off of the large textbox.</p>
  
  <p>Any help would be much appreciated.</p>