title: Intertesting problem with UITableViewCell and UITableView, Any solution?
body: <p>I have a class inherited from <code>UITableViewController</code> and this is also the root class. This tableView contains three custom <code>UITableViewCell</code>s (loaded from NIB file and not subclassed) and each <code>UITableViewCell</code> has one <code>UITextField</code>. Now when I implement delegate method</p>
  
  <pre><code>- (BOOL)textField:(UITextField *)textField
          shouldChangeCharactersInRange:(NSRange)range
          replacementString:(NSString *)string
  </code></pre>
  
  <p>I don't recieve any event. This function never gets fired, I tried implementating other delegate methods too but none of them fires. How to fire these delegate methods?</p>
  
  <p>I also want to override <code>canPerformAction:sender:</code> function for these <code>UITextField</code>s (Which are part of <code>UITableViewCell</code>);<br>
  How to do this?</p>