/// <summary>
 /// Unlock Document.
 /// Status: Drafted
 /// </summary>
 /// <returns>true if success </returns>
 public bool UnlockIt()
 {
     if (!IsValidAction(ACTION_UNLOCK))
     {
         return(false);
     }
     if (_document != null)
     {
         if (_document.UnlockIt())
         {
             _status = STATUS_DRAFTED;
             _document.SetDocStatus(_status);
             return(true);
         }
         return(false);
     }
     _status = STATUS_DRAFTED;
     return(true);
 }