SecondaryAxisXCollection Class
Namespace: DevExpress.XtraCharts
Assembly: DevExpress.XtraCharts.v21.2.dll
NuGet Package: DevExpress.Charts
Declaration
Related API Members
The following members return SecondaryAxisXCollection objects:
Remarks
In addition to the primary axes, for an XY-Diagram, an unlimited number of secondary axes can be created. Secondary X-axes reside in the collection represented by the SecondaryAxisXCollection class, which can be accessed via the XYDiagram.SecondaryAxesX property.
The properties and methods exposed by the SecondaryAxisXCollection class can be used to perform common collection operations, such as adding new or deleting existing items. Each collection item is represented by a SecondaryAxisX object. Individual secondary X-axes can be accessed using indexer notation.
The collection of secondary Y-axes is represented by the SecondaryAxisYCollection class.
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 and Swift Point. |
| 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 and Swift Point. |
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);
}