title: TextBox does not fire KeyDown event on spacebar
body: <p>I have textbox catching KeyDown events like this:</p>
  
  <pre><code> &lt;Style TargetType="TextBox"&gt;
          &lt;EventSetter Event="KeyDown" Handler="TextBoxInput"/&gt;
      &lt;/Style&gt;
  </code></pre>
  
  <p>It works for all key and key combinations except spacebar. Even space with modifiers works ok, only space alone does not come to my method.</p>
  
  <p>Is there anything I can change on the textbox to fire the event also on spacebar alone?</p>