protected virtual void WriteXMLInner(Stream stream)
        {
            DebugLogging.WriteLine("OlapAxisLayoutSerializer.WriteXMLInner");

            //if (fGrid != null)
            LoadFrom(fGrid);

            fGrid.BeforSave(fGrid, new OnSerializeArgs(this));

            var bf = XmlSerializator.GetXmlSerializer(GetType());

            bf.Serialize(stream, this);
        }