public HSSFChart.HSSFSeries CloneSeries(HSSFSheet sheet, int offset)
{
LinkedDataRecordCollection linkedDataRecords = new LinkedDataRecordCollection();
HSSFChart.HSSFSeries series = this.Chart.CreateSeries();
series.GetDataName().FormulaOfLink = (Ptg[])this.Series.GetDataName().FormulaOfLink.Clone();
series.GetDataValues().FormulaOfLink = (Ptg[])this.Series.GetDataValues().FormulaOfLink.Clone();
linkedDataRecords.Add(series.GetDataName());
linkedDataRecords.Add(series.GetDataValues());
linkedDataRecords.Offset(offset);
return(series);
}