title: How to get extjs grid cell component
body: <p>I want to get grid's cell and fire cellclick event on it programmatically. How can I implement it?So far I am successful to get cell's dom element like this</p>
  
  <pre><code>var cell = pos.view.getCellByPosition(newPos);
  </code></pre>
  
  <p>but when I execute the following code </p>
  
  <pre><code>cell.fireEvent('click');
  </code></pre>
  
  <p>it gives me error because its not Ext Component. Is there any way to get Ext Component from Dom Element. Dom element has an ID but when I use 
  <code>Ext.getCmp(cell.id);</code>
  it returns nothing.</p>