title: How can I make a grid with checkboxes that maintain state between page loads?
body: <p>How can we make checkboxes remain checked when the page is refreshed in a Sencha ExtJS 3.3.0 GridPanel?</p>
  
  <p>I have a GridPanel which displays some information with checkboxes. When the page is refreshed, the checkbox should still be checked.</p>
  
  <p>Any suggestions, ideas, or code samples?</p>