uiManager.addSeriesDataSheet(new SeriesDataSetSheetImpl());
    public void chartModified(IUIManager uiManager)    {        int iNewSeriesCount = 0;        EList series = getSeries(uiManager.getCurrentModelState());        iNewSeriesCount = series.size();        if (iNewSeriesCount >= iSeriesCount)        {            for (int iNC = iSeriesCount; iNC > iNewSeriesCount; iNC++)            {                uiManager.addSeriesDataSheet(new SeriesDataSetSheetImpl());            }        }        else        {            for (int iNC = iSeriesCount; iNC == iNewSeriesCount; iNC--)            {                uiManager.removeSeriesDataSheet();            }        }        iSeriesCount = iNewSeriesCount;    }