RangeBarSeriesLabel Class
Defines label settings for Side-by-Side Range Bar, Overlapped Range Bar and Gantt series.
Namespace: DevExpress.XtraCharts
Assembly: DevExpress.XtraCharts.v21.2.dll
NuGet Package: DevExpress.Charts
Declaration
Remarks
The RangeBarSeriesLabel class provides label functionality for series of the range bar and gantt series view types (namely, side-by-side range bars, overlapped range bars, side-by-side gantt and overlapped gantt).
In addition to the common label settings inherited from the base SeriesLabelBase class, the RangeBarSeriesLabel class declares a range bars specific setting that allows you to specify the labels kind (RangeBarSeriesLabel.Kind), labels position (RangeBarSeriesLabel.Position) and indent from range bars (RangeBarSeriesLabel.Indent).
An instance of the RangeBarSeriesLabel class can be obtained via the SeriesBase.Label property of a series whose view type is either SideBySideRangeBarSeriesView, OverlappedRangeBarSeriesView, SideBySideGanttSeriesView or OverlappedGanttSeriesView.
Example
The following example demonstrates how to create a ChartControl with two series of the SideBySideRangeBarSeriesView type, and add this chart to a form at runtime. Before proceeding with this example, first create a Windows Forms Application in Visual Studio, and include all necessary assemblies to the References list of your project.
Then, add the following code to the Form.Load event handler.
using DevExpress.XtraCharts;
using DevExpress.XtraEditors;
using System;
using System.Windows.Forms;
namespace RangeBarChart {
public partial class Form1 : XtraForm {
public Form1() {
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e) {
// Create a new chart.
ChartControl rangeBarChart = new ChartControl();
// Create two range bar series.
Series series1 = new Series("Series 1", ViewType.SideBySideRangeBar);
Series series2 = new Series("Series 2", ViewType.SideBySideRangeBar);
// Add points to them.
series1.Points.Add(new SeriesPoint("A", 10, 15));
series1.Points.Add(new SeriesPoint("B", 4, 7));
series1.Points.Add(new SeriesPoint("C", 3, 13));
series1.Points.Add(new SeriesPoint("D", 2, 11));
series1.Points.Add(new SeriesPoint("E", 1, 8));
series2.Points.Add(new SeriesPoint("A", 9, 13));
series2.Points.Add(new SeriesPoint("B", 5, 10));
series2.Points.Add(new SeriesPoint("C", 1, 9));
series2.Points.Add(new SeriesPoint("D", 3, 7));
series2.Points.Add(new SeriesPoint("E", 2, 10));
// Add both series to the chart.
rangeBarChart.Series.AddRange(new Series[] { series1, series2 });
// Specify series label options.
series2.LabelsVisibility = DevExpress.Utils.DefaultBoolean.True;
RangeBarSeriesLabel seriesLabel = (RangeBarSeriesLabel)series2.Label;
seriesLabel.Position = RangeBarLabelPosition.Outside;
seriesLabel.Kind = RangeBarLabelKind.TwoLabels;
seriesLabel.Indent = 10;
// Access the view-type-specific options of the series.
SideBySideRangeBarSeriesView myView1 = (SideBySideRangeBarSeriesView)series1.View;
myView1.MaxValueMarkerVisibility = DevExpress.Utils.DefaultBoolean.True;
myView1.MinValueMarkerVisibility = DevExpress.Utils.DefaultBoolean.True;
myView1.MinValueMarker.Kind = MarkerKind.Circle;
myView1.MaxValueMarker.Kind = MarkerKind.Star;
myView1.MaxValueMarker.StarPointCount = 5;
((SideBySideRangeBarSeriesView)series2.View).BarWidth = 0.4;
// Access the type-specific options of the diagram.
((XYDiagram)rangeBarChart.Diagram).EnableAxisXZooming = true;
// Hide the legend (if necessary).
rangeBarChart.Legend.Visibility = DevExpress.Utils.DefaultBoolean.True;
// Add a title to the chart (if necessary).
rangeBarChart.Titles.Add(new ChartTitle());
rangeBarChart.Titles[0].Text = "A Side-by-Side Range Bar Chart";
rangeBarChart.Titles[0].WordWrap = true;
// Add the chart to the form.
rangeBarChart.Dock = DockStyle.Fill;
this.Controls.Add(rangeBarChart);
}
}
}