データのポイントとその属性を格納します。Chart.Series プロパティ (System.Windows.Forms.DataVisualization.Charting) | MSDN
Series series1 = new Series(); DataPoint dataPoint1 = new DataPoint(1, 10); DataPoint dataPoint2 = new DataPoint(2, 15); DataPoint dataPoint3 = new DataPoint(3, 25); Series series2 = new Series(); DataPoint dataPoint4 = new DataPoint(1, 20); DataPoint dataPoint5 = new DataPoint(2, 30); DataPoint dataPoint6 = new DataPoint(3, 10); series1.ChartArea = "ChartArea1"; series1.Legend = "Legend1"; series1.Name = "Series1"; series1.Points.Add(dataPoint1); series1.Points.Add(dataPoint2); series1.Points.Add(dataPoint3); series2.ChartArea = "ChartArea1"; series2.Legend = "Legend1"; series2.Name = "Series2"; series2.Points.Add(dataPoint4); series2.Points.Add(dataPoint5); series2.Points.Add(dataPoint6); this.chart.Series.Add(series1); this.chart.Series.Add(series2);