Hi,
your chartPanel should pass the chartModel to the super constructor. The panel
takes care that the model is detached after the request.
If you just hold chartModel as a member variable, no one will call detach() on
it
Have fun
Sven
>
> On 28.04.2019 at 21:29, <Sibgha Nazir> wrote:
>
>
> Hi, This question is related to LoadableDetachable Model. I have a wicket
> panel, LearningCurveChartPanel. *public* LearningCurveChartPanel(String aId,
> IModel 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 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
>
