public LectorXml(LectorBase lector, XmlReader reader)
     : base(lector)
 {
     _reader = reader;
     _reader.MoveToElement();
     _elem    = _reader.Name;
     _isEmpty = _reader.IsEmptyElement;
 }
 protected LectorBinario(LectorBase lector, BinaryReader reader)
     : base(lector)
 {
     EstablecerReader(reader);
 }