[Browsable(false)]
[Obsolete("This property is obsolete now. Use the Visibility property instead.")]
public bool Visible { get; set; }

<Obsolete("This property is obsolete now. Use the Visibility property instead.")>
<Browsable(False)>
Public Property Visible As Boolean

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

using (ChartControl fakeChart = (ChartControl)chart.Clone()) {
    fakeChart.Legend.Visible = true;
    fakeChart.BorderOptions.Visible = false;

Using fakeChart As ChartControl = CType(chart.Clone(), ChartControl)
    fakeChart.Legend.Visible = True
    fakeChart.BorderOptions.Visible = False

' Hide the legend (if necessary).
chartControl1.Legend.Visible = False
'Show crosshair axis lines and crosshair axis labels to see format values of crosshair labels