title: Paging toolbar refresh equivalent
body: <p>This should be very simple but I don't have any solution yet.
  I am using a ExtJs v.3.3.1</p>
  
  <p>I have a grid panel that allows record deletion.
  The grid has a paging toolbar that is attached to the panel store.</p>
  
  <p>The deletion process sends an ajax request to the server, on success I remove the record from the Db which is used for displaying record in the grid.</p>
  
  <p>My problem is that when I delete a record it sometimes shows effect immediately but sometime doesn't. that is record is deleted from DB but from grid panel it doesn't get erased immediately sometimes. but when I click refresh button it shows current state of DB that everything works fine everytime.</p>
  
  <p>I have used <code>Ext.getCmp('id-pagingtoobar').doRefresh()</code> to show immediate effect but this doesn't works every time.</p>
  
  <p>Anybody has solution for this?</p>