title: Looping through all the UITextFields in a UITableView
body: <p>I have a <code>UITableView</code> that contains a <code>UITextField</code> in each cell. 
  I can't seem to figure out how to loop through and get each of the <code>UITextFields</code>.
  Is there any way to do this???</p>
  
  <p>Many thanks,
  Brett</p>