corelibraries-devexpress-dot-xtracharts-ccdd291c.md
Represents a collection that stores individual secondary Y-axes of a particular XYDiagram.
Namespace : DevExpress.XtraCharts
Assembly : DevExpress.XtraCharts.v25.2.dll
NuGet Package : DevExpress.Charts
public class SecondaryAxisYCollection :
SecondaryAxisCollection
Public Class SecondaryAxisYCollection
Inherits SecondaryAxisCollection
The following members return SecondaryAxisYCollection objects:
In addition to the primary axes, for an XY-Diagram, an unlimited number of secondary axes can be created. Secondary Y-axes reside in the collection represented by the SecondaryAxisYCollection class, which can be accessed via the XYDiagram.SecondaryAxesY property.
The properties and methods exposed by the SecondaryAxisYCollection class can be used to perform common collection operations, such as adding new or deleting existing items. Each collection item is represented by a SecondaryAxisY object. Individual secondary Y-axes can be accessed using indexer notation.
The collection of secondary X-axes is represented by the SecondaryAxisXCollection class.
For more information, refer to Primary and Secondary Axes.
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);
}
Imports System
Imports System.Drawing
Imports System.Windows.Forms
Imports DevExpress.XtraCharts
' ...
Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs) _
Handles MyBase.Load
' Create a new chart.
Dim chartControl1 As New ChartControl()
' Create two series.
Dim series1 As New Series("Series 1", ViewType.Bar)
Dim series2 As 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.
Dim myAxisX As New SecondaryAxisX("my X-Axis")
Dim myAxisY As New SecondaryAxisY("my Y-Axis")
CType(chartControl1.Diagram, XYDiagram).SecondaryAxesX.Add(myAxisX)
CType(chartControl1.Diagram, XYDiagram).SecondaryAxesY.Add(myAxisY)
' Assign the series2 to the created axes.
CType(series2.View, LineSeriesView).AxisX = myAxisX
CType(series2.View, LineSeriesView).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
Me.Controls.Add(chartControl1)
End Sub
Object CollectionBase ChartCollectionBase ChartElementNamedCollection SecondaryAxisCollection SecondaryAxisYCollection
See Also