LegendBase.MaxHorizontalPercentage Property
Gets or sets the legend’s maximum possible width (in percents).
Namespace: DevExpress.XtraCharts
Assembly: DevExpress.XtraCharts.v24.1.dll
NuGet Package: DevExpress.Charts
Declaration
[XtraChartsLocalizableCategory(XtraChartsCategory.Behavior)]
[XtraSerializableProperty]
public double MaxHorizontalPercentage { get; set; }Property Value
| Type | Description |
|---|---|
| Double | A Double value which represents the maximum width of a legend (in percents). |
Remarks
The MaxHorizontalPercentage is the diagram’s area width percentage (or the chart’s area width percentage, if the Legend is situated outside the diagram - refer to the LegendBase.AlignmentHorizontal and LegendBase.AlignmentVertical topics for more information).
The following images demonstrate the MaxHorizontalPercentage property in action.
| MaxHorizontalPercentage = 100 | MaxHorizontalPercentage = 60 |
|---|---|
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For more information, refer to Legends.
Example
This example demonstrates how to access a chart’s Legend and customize its appearance at runtime.
To specify whether series, indicators, Constant Lines, and Strips should be shown in the legend, set their SeriesBase.ShowInLegend, Indicator.ShowInLegend, ConstantLine.ShowInLegend, and Strip.ShowInLegend properties to true.
using System;
using System.Drawing;
using System.Windows.Forms;
using DevExpress.Drawing;
using DevExpress.XtraCharts;
namespace ChartLegend {
public partial class Form1 : Form {
public Form1() {
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e) {
// Create an empty chart.
ChartControl chartControl1 = new ChartControl();
// Create a series and add points to it.
Series series1 = new Series("Series 1", ViewType.Bar);
series1.Points.Add(new SeriesPoint("A", new double[] { 4 }));
series1.Points.Add(new SeriesPoint("B", new double[] { 2 }));
series1.Points.Add(new SeriesPoint("C", new double[] { 17 }));
series1.Points.Add(new SeriesPoint("D", new double[] { 4 }));
series1.Points.Add(new SeriesPoint("E", new double[] { 17 }));
series1.Points.Add(new SeriesPoint("F", new double[] { 12 }));
series1.Points.Add(new SeriesPoint("G", new double[] { 15 }));
// Add the series to the chart.
chartControl1.Series.Add(series1);
// Create a constant line (optional).
ConstantLine constantLine1 = new ConstantLine("Constant Line 1");
((XYDiagram)chartControl1.Diagram).AxisY.ConstantLines.Add(constantLine1);
constantLine1.AxisValue = 4.5;
// Create a strip (optional).
Strip strip1 = new Strip("Strip 1");
((XYDiagram)chartControl1.Diagram).AxisY.Strips.Add(strip1);
strip1.MaxLimit.AxisValue = 15;
strip1.MinLimit.AxisValue = 7.5;
// Customize the strip's and constant line's legend appearance.
strip1.ShowInLegend = true;
constantLine1.ShowInLegend = true;
constantLine1.LegendText = "Some Threshold";
// Display the chart control's legend.
chartControl1.Legend.Visibility = DevExpress.Utils.DefaultBoolean.True;
// Define its horizontal and vertical alignment.
chartControl1.Legend.AlignmentHorizontal = LegendAlignmentHorizontal.RightOutside;
chartControl1.Legend.AlignmentVertical = LegendAlignmentVertical.Top;
// Define the layout of items within the legend.
chartControl1.Legend.Direction = LegendDirection.LeftToRight;
chartControl1.Legend.EquallySpacedItems = true;
chartControl1.Legend.HorizontalIndent = 4;
chartControl1.Legend.VerticalIndent = 4;
chartControl1.Legend.TextOffset = 4;
// Define the limits for the legend to occupy the chart's space.
chartControl1.Legend.MaxHorizontalPercentage = 50;
chartControl1.Legend.MaxVerticalPercentage = 50;
// Define the legend markers' options.
chartControl1.Legend.MarkerVisible = true;
chartControl1.Legend.MarkerSize = new Size(20, 20);
// Customize the legend appearance.
chartControl1.Legend.BackColor = Color.LightBlue;
chartControl1.Legend.FillStyle.FillMode = FillMode.Empty;
chartControl1.Legend.Border.Color = Color.DarkBlue;
chartControl1.Legend.Border.Thickness = 2;
chartControl1.Legend.Border.Visibility = DevExpress.Utils.DefaultBoolean.True;
chartControl1.Legend.Shadow.Visible = true;
chartControl1.Legend.Shadow.Color = Color.LightGray;
chartControl1.Legend.Shadow.Size = 2;
// Customize the legend text properties.
chartControl1.Legend.EnableAntialiasing = DevExpress.Utils.DefaultBoolean.False;
chartControl1.Legend.DXFont = new DXFont("Tahoma", 9, DXFontStyle.Bold);
chartControl1.Legend.TextColor = Color.DarkBlue;
// Add the chart to the form.
chartControl1.Dock = DockStyle.Fill;
this.Controls.Add(chartControl1);
}
}
}