title: Wipe a delete button out of table view cell
body: <p>when pressing a row delete button on a table view, I do some validation, and if the user chooses to cancel the operation it all should rollback. Not only want to keep that row (what is happening), but also make disappear the delete button leaving only the "-" round button.  How can I do that?</p>
  
  <p>once again, thank you.</p>