title: border for textField in ExtJS 4
body: <p>I have some problem with textField. I have to set border 0 for it dynamically.
  i try do this:</p>
  
  <pre><code>field.border = 0;
  </code></pre>
  
  <p>and this</p>
  
  <pre><code>field..addCls( "border: 0px ;" );
  </code></pre>
  
  <p>but i didn't have any result</p>