I\'m building a Column chart with System.Web.UI.DataVisualization.Charting and would like to show a dotted line to represent an average. StripeLine seems to be exac
You can use Annotations
double avg = Chart1.Series[0].Points.Average(p => p.XValue);
double lineHeight = avg;
HorizontalLineAnnotation ann = new HorizontalLineAnnotation();
ann.AxisX = Chart1.ChartAreas[0].AxisX;
ann.AxisY = Chart1.ChartAreas[0].AxisY;
ann.IsSizeAlwaysRelative = false;
ann.AnchorY = lineHeight;
ann.IsInfinitive = true;
ann.ClipToChartArea = Chart1.ChartAreas[0].Name; ann.LineColor = Color.Red; ann.LineWidth = 3;
Chart1.Annotations.Add(ann);
HTML Code
Code for Text Annotation
TextAnnotation txtAnn = new TextAnnotation();
txtAnn.AxisX = Chart1.ChartAreas[0].AxisX;
txtAnn.AxisY = Chart1.ChartAreas[0].AxisY;
txtAnn.IsSizeAlwaysRelative = false;
txtAnn.AnchorY = lineHeight;
txtAnn.AnchorX = Chart1.Series[0].Points.Last().XValue;
txtAnn.AnchorAlignment = ContentAlignment.BottomLeft;
txtAnn.Text = "DivisionOne(35.5)";
txtAnn.ClipToChartArea = Chart1.ChartAreas[0].Name; txtAnn.ForeColor = Color.Red;
Chart1.Annotations.Add(txtAnn);
You can get more information here
More Information About Annotations
Chart Image