bar chart refresh problem after deleting a bar

[boermansjo]

Hello, after a few time testing, I have a little problem with my bar chart.
It's possible to add and delete new data bars. But the problem is when I remove a bar.
It's like the chart don't delete the hole data object it uses to draw.
here are some screens :
http://sd-1.archive-host.com/membres.../bar_first.PNG

http://sd-1.archive-host.com/membres...bar_second.PNG

http://sd-1.archive-host.com/membres.../bar_third.PNG

On the second screen, you can see that they all resize like it should. Then when i maximize the window i see a little box where the data was before deleting it. How can i fix that ?

This is the code i use when i remove a data :

public void onSelect(SelectEvent event) {            
            Context c = event.getContext();
            int row = c.getIndex();
            Data d = store.get(row);
            channelsData.remove(row);
            store.remove(d);
            store.commitChanges();
            barChart.setStore(store);
            barSpec.setChannelsData(channelsData);
            channelsData = barSpec.getChannelsData();
            barChart.redrawChart();

Thank's for helping.
Van de Velde Jo