corelibraries-devexpress-dot-xtracharts-dot-legendbase-629354b7.md
Gets or sets the legend’s maximum possible height (in percents).
Namespace : DevExpress.XtraCharts
Assembly : DevExpress.XtraCharts.v25.2.dll
NuGet Package : DevExpress.Charts
[XtraChartsLocalizableCategory(XtraChartsCategory.Behavior)]
public double MaxVerticalPercentage { get; set; }
<XtraChartsLocalizableCategory(XtraChartsCategory.Behavior)>
Public Property MaxVerticalPercentage As Double
| Type | Description |
|---|---|
| Double |
A Double value which represents the maximum height of a legend (in percents).
|
The MaxVerticalPercentage is the diagram’s area height 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 MaxVerticalPercentage property in action.
| MaxVerticalPercentage = 100 | MaxVerticalPercentage = 60 |
|---|---|
For more information, refer to Legends.
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);
}
}
}
Imports System
Imports System.Drawing
Imports System.Windows.Forms
Imports DevExpress.Drawing
Imports DevExpress.XtraCharts
Namespace ChartLegend
Public Partial Class Form1
Inherits Form
Public Sub New()
InitializeComponent()
End Sub
Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs)
' Create an empty chart.
Dim chartControl1 As ChartControl = New ChartControl()
' Create a series and add points to it.
Dim series1 As Series = 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).
Dim constantLine1 As ConstantLine = New ConstantLine("Constant Line 1")
CType(chartControl1.Diagram, XYDiagram).AxisY.ConstantLines.Add(constantLine1)
constantLine1.AxisValue = 4.5
' Create a strip (optional).
Dim strip1 As Strip = New Strip("Strip 1")
CType(chartControl1.Diagram, XYDiagram).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
Me.Controls.Add(chartControl1)
End Sub
End Class
End Namespace
See Also