IChartFormat PieSeriesLine Property

<para>//Create worksheet</para><para>Workbook workbook = new Workbook();</para><para>workbook.LoadFromFile("Sample.xlsx");</para><para>Worksheet worksheet = workbook.Worksheets[0];</para><para>//Create chart and set range</para><para>IChart chart = worksheet.Charts.Add();</para><para>chart.DataRange = worksheet.Range["A1:F2"];</para><para>//Set chart type</para><para>chart.ChartType = ExcelChartType.PieOfPie;</para><para>//Set pie series line border</para><para>IChartBorder border =chart.Series[0].Format.Options.PieSeriesLine;</para><para>//Set color</para><para>border.Color = Color.Red;</para><para>//Save to file</para><para>workbook.SaveToFile("Chart.xlsx");</para>