private void LongRangeReader_TagRead(object sender, string e)
 {
     try
     {
         var bookCopy = _BookCopyService.FindByLongRange(e);
         if (bookCopy.IsBorrowed == false)
         {
             var handler = UnborrowedIsGoingOut;
             if (handler != null)
             {
                 handler(this, new Models.BookCopyWithInfo
                 {
                     BookCopy = bookCopy,
                     BookInfo = _BookCopyService.GetBookInfo(bookCopy)
                 });
             }
         }
     }
     catch (Exception)
     { }
 }