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SecondaryAxisCollection Class

Represents a base class for collections of secondary axes in an XYDiagram.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v18.2.dll

Declaration

public abstract class SecondaryAxisCollection :
    ChartElementNamedCollection,
    IEnumerable<IAxisData>,
    IEnumerable,
    IEnumerable<Axis2D>
Public MustInherit Class SecondaryAxisCollection
    Inherits ChartElementNamedCollection
    Implements IEnumerable(Of IAxisData),
               IEnumerable,
               IEnumerable(Of Axis2D)

Related API Members

The following members accept/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.

Examples

This example demonstrates how secondary axes can be added to a chart at runtime.

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.Visible = 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.Visible = true;
    myAxisX.Title.TextColor = Color.Red;
    myAxisX.Label.TextColor = Color.Red;
    myAxisX.Color = Color.Red;

    myAxisY.Title.Text = "A Secondary Y-Axis";
    myAxisY.Title.Visible = 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);
}
See Also