Loadable Detachable Model not updating on re-render

[Sibgha Nazir]

Hi,

This question is related to LoadableDetachable Model.

I have a wicket panel, LearningCurveChartPanel.

   *public* LearningCurveChartPanel(String aId, IModel<AnnotatorState>
aModel)

    {

        *super*(aId);

        model = aModel;


        //initially the chart is empty. passing empty model

        chartPanel = *new* ChartPanel(*MID_CHART_CONTAINER*,

                LoadableDetachableModel.*of*(*this*::renderChart));



        chartPanel.setOutputMarkupId(*true*);

        add(chartPanel);

    }

    @OnEvent

    *public* *void* onRenderAnnotations(RenderAnnotationsEvent aEvent)

    {

        LOG.trace("rendered annotation event");


        aEvent.getRequestHandler().add(*this*);

    }


which is rendering a ChartPanel. The ChartPanel is like this

 *public* ChartPanel(String aId, LoadableDetachableModel<LearningCurve>
loadableDetachableModel)

    {

        *super*(aId);



        chartModel = (loadableDetachableModel);


        chart = *new* WebMarkupContainer(*MID_CHART_CONTAINER*);

        chart.setMarkupId("canvas");

        chart.setOutputMarkupId(*true*);

        add(chart);


        chartAjaxBejavior = *new* ChartAjaxBejavior();

        add(chartAjaxBejavior);

    }


The chartModel has the right data and it renders correctly with the data
that is fed to it from LearningCurveChartPanel.

But when the onRenderAnnotation event of the LearningCurveChartPanel
triggers what I am trying to do is to update the (re-render) the Chart
Panel inside it. It does re-render the chart panel but the model stays the
same. I want to implement it such that the model of the ChartPanel updates
and when it re-renders it as the latest data when the onRenderAnnotation
event was triggered.

Please guide me in the right direction.

Best,
Sibgha