ConstantLine.AxisValue Property

Gets or sets the constant line's position along an axis.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v19.2.dll

Declaration

[XtraChartsLocalizableCategory(XtraChartsCategory.Behavior)]
public object AxisValue { get; set; }
<XtraChartsLocalizableCategory(XtraChartsCategory.Behavior)>
Public Property AxisValue As Object

Property Value

Type Description
Object

A Object value that specifies the constant line's position.

Remarks

The AxisValue property specifies the position of a constant line along its corresponding axis. The value set for the AxisValue property should lie in the range specified by the AxisBase.Range property in order for the constant line to be visible on a diagram.

The following images demonstrate the AxisValue property in action.

AxisValue = 350 AxisValue = "Indiana"
AxisValue_350 AxisValue_Indiana

For more information, refer to Constant Lines.

Examples

This example demonstrates how a constant line can be created and customized at runtime.

Since constant lines belong to a diagram's axis, it's first required to cast your diagram object to the appropriate diagram's type. After that, it's possible to access axes and manage their constant lines collection.

// Cast the chart's diagram to the XYDiagram type, to access its axes.
XYDiagram diagram = (XYDiagram)chartControl1.Diagram;

// Create a constant line.
ConstantLine constantLine1 = new ConstantLine("Constant Line 1");
diagram.AxisY.ConstantLines.Add(constantLine1);

// Define its axis value.
constantLine1.AxisValue = 7;

// Customize the behavior of the constant line.
constantLine1.Visible = true;
constantLine1.ShowInLegend = true;
constantLine1.LegendText = "Some Threshold";
constantLine1.ShowBehind = false;

// Customize the constant line's title.
constantLine1.Title.Visible = true;
constantLine1.Title.Text = "Constant Line Title";
constantLine1.Title.TextColor = Color.Red;
constantLine1.Title.Antialiasing = false;
constantLine1.Title.Font = new Font("Tahoma", 14, FontStyle.Bold);
constantLine1.Title.ShowBelowLine = true;
constantLine1.Title.Alignment = ConstantLineTitleAlignment.Far;

// Customize the appearance of the constant line.
constantLine1.Color = Color.Red;
constantLine1.LineStyle.DashStyle = DashStyle.Dash;
constantLine1.LineStyle.Thickness = 2;
See Also