FarPoint.Web.Chart.BoxWhiskerSeries series1 = new FarPoint.Web.Chart.BoxWhiskerSeries();
series1.SeriesName = "Store1";
series1.Values.Add(12);
series1.Values.Add(13);
series1.Values.Add(20);
series1.Border = new FarPoint.Web.Chart.SolidLine(Color.Black);
series1.Fill = new FarPoint.Web.Chart.GradientFill(Color.Brown, Color.Orange);
FarPoint.Web.Chart.BoxWhiskerSeries series2 = new FarPoint.Web.Chart.BoxWhiskerSeries();
series2.SeriesName = "Store2";
series2.Values.Add(15);
series2.Values.Add(5);
series2.Values.Add(25);
series2.Border = new FarPoint.Web.Chart.SolidLine(Color.Black);
series2.Fill = new FarPoint.Web.Chart.GradientFill(Color.Lavender, Color.DeepSkyBlue);
FarPoint.Web.Chart.ClusteredBoxWhiskerSeries cseries = new FarPoint.Web.Chart.ClusteredBoxWhiskerSeries();
cseries.Series.Add(series1);
cseries.Series.Add(series2);
FarPoint.Web.Chart.YPlotArea plotArea = new FarPoint.Web.Chart.YPlotArea();
plotArea.Location = new System.Drawing.PointF(0.2f, 0.2f);
plotArea.Series.Add(cseries);
FarPoint.Web.Chart.ChartModel model = new FarPoint.Web.Chart.ChartModel();
model.PlotAreas.Add(plotArea);
FarPoint.Web.Spread.Chart.SpreadChart chart = new FarPoint.Web.Spread.Chart.SpreadChart();
chart.Model = model;
FpSpread1.Sheets[0].Charts.Add(chart);