public ActionResult SentMessages(int?p)
 {
     using (UnitOfWorkManager.NewUnitOfWork())
     {
         var pageIndex     = p ?? 1;
         var pagedMessages = _privateMessageService.GetPagedSentMessagesByUser(pageIndex, SiteConstants.PrivateMessageListSize, LoggedOnUser);
         var viewModel     = new ListPrivateMessageViewModel
         {
             Messages = pagedMessages
         };
         return(View(viewModel));
     }
 }