title: ExtJS 4: Changing Store param names
body: <p>Right now I'm running into a problem where I can't seem to change the param names <code>page</code>, <code>start</code>, <code>limit</code>, and <code>dir</code> for a <code>Ext.data.Store</code>. </p>
  
  <p>In ExtJS 3 I could do this:</p>
  
  <pre><code>paramNames : 
  {
      start : 'startIndex',
      limit : 'pageSize',
      sort : 'sortCol',
      dir : 'sortDir'
  }
  </code></pre>
  
  <p>I tried adding this configuration to the Ext.data.Store for ExtJS 4 however 'start', 'limit', 'sort', and 'dir' still show up as the default param names. I need to be able to change this as the server side functionality requires these param names. This also causes paging and remote sorting to not work since the param names don't match what the server side resource is expecting.</p>
  
  <p>So is there a new way in ExtJS 4 to change these param names like in ExtJS 3?</p>