I'm using a BarChart with two Y-axis like in the following example: float[] x = new float[] { 1, 2, 3 }; // left y-axis int[] y1 = new int[] { 8, 15, 20 }; // rigth y2-axis int[] y2 = new int[] { 1000, 1200, 1400 }; ChartDataSeries ds1 = C1WebChart1.ChartGroups[0].ChartData.SeriesList.AddNewSeries...