wxDiagram::OnShapeSave(db, shape, expr);
csEvtHandler *handler = (csEvtHandler *)shape.GetEventHandler();
expr.AddAttributeValueString(_T("label"), handler->m_label);
wxDiagram::OnShapeSave(db, shape, expr);
csEvtHandler *handler = (csEvtHandler *)shape.GetEventHandler();
expr.AddAttributeValueString(_T("label"), handler->m_label);