SecondaryAxisCollection Class
Represents a base class for collections of secondary axes in an XYDiagram.
Namespace: DevExpress.XtraCharts
Assembly: DevExpress.XtraCharts.v20.2.dll
NuGet Packages: DevExpress.Charts, DevExpress.WindowsDesktop.Charts
Declaration
public abstract class SecondaryAxisCollection :
ChartElementNamedCollection,
IEnumerable<IAxisData>,
IEnumerable,
IEnumerable<Axis2D>Related API Members
The following members return SecondaryAxisCollection objects:
Remarks
A SecondaryAxisCollection class provides the basic functionality of secondary axes collections. Its properties and methods are inherited by SecondaryAxisXCollection and SecondaryAxisYCollection classes of the XYDiagram.
For more information, refer to Primary and Secondary Axes.
Example
This example demonstrates how to add secondary axes to a chart at runtime.
Use the following API members to add secondary axes:
| Member | Description |
|---|---|
| XYDiagram2D.SecondaryAxesX | Gets the collection of secondary X-axes. |
| SecondaryAxisX | Represents the secondary X-axis within a chart control in 2D series, except for the Swift Plot. |
| XYDiagram2D.SecondaryAxesY | Gets the collection of secondary Y-axes. |
| SecondaryAxisY | Represents the secondary Y-axis within a chart control in 2D series, except for the Swift Plot. |
using System;
using System.Drawing;
using System.Windows.Forms;
using DevExpress.XtraCharts;
// ...
private void Form1_Load(object sender, EventArgs e) {
// Create a new chart.
ChartControl chartControl1 = new ChartControl();
// Create two series.
Series series1 = new Series("Series 1", ViewType.Bar);
Series series2 = new Series("Series 2", ViewType.Line);
// Add points to them, with their arguments different.
series1.Points.Add(new SeriesPoint("A", 10));
series1.Points.Add(new SeriesPoint("B", 12));
series1.Points.Add(new SeriesPoint("C", 17));
series1.Points.Add(new SeriesPoint("D", 14));
series2.Points.Add(new SeriesPoint("I", 1500));
series2.Points.Add(new SeriesPoint("II", 1800));
series2.Points.Add(new SeriesPoint("III", 2500));
series2.Points.Add(new SeriesPoint("IV", 3300));
// Add both series to the chart.
chartControl1.Series.AddRange(new Series[] { series1, series2 });
// Hide the legend (optional).
chartControl1.Legend.Visibility = DevExpress.Utils.DefaultBoolean.False;
// Create two secondary axes, and add them to the chart's Diagram.
SecondaryAxisX myAxisX = new SecondaryAxisX("my X-Axis");
SecondaryAxisY myAxisY = new SecondaryAxisY("my Y-Axis");
((XYDiagram)chartControl1.Diagram).SecondaryAxesX.Add(myAxisX);
((XYDiagram)chartControl1.Diagram).SecondaryAxesY.Add(myAxisY);
// Assign the series2 to the created axes.
((LineSeriesView)series2.View).AxisX = myAxisX;
((LineSeriesView)series2.View).AxisY = myAxisY;
// Customize the appearance of the secondary axes (optional).
myAxisX.Title.Text = "A Secondary X-Axis";
myAxisX.Title.Visibility = DevExpress.Utils.DefaultBoolean.True;
myAxisX.Title.TextColor = Color.Red;
myAxisX.Label.TextColor = Color.Red;
myAxisX.Color = Color.Red;
myAxisY.Title.Text = "A Secondary Y-Axis";
myAxisY.Title.Visibility = DevExpress.Utils.DefaultBoolean.True;
myAxisY.Title.TextColor = Color.Blue;
myAxisY.Label.TextColor = Color.Blue;
myAxisY.Color = Color.Blue;
// Add the chart to the form.
chartControl1.Dock = DockStyle.Fill;
this.Controls.Add(chartControl1);
}