MarkerBase Class
Represents a base class containing the common settings of data point markers.
Namespace: DevExpress.XtraCharts
Assembly: DevExpress.XtraCharts.v23.2.dll
NuGet Package: DevExpress.Charts
Declaration
Related API Members
The following members return MarkerBase objects:
Remarks
The MarkerBase class contains the settings that define the data point marker functionality, and at the same time serves as a base for the SimpleMarker class.
The properties exposed by the MarkerBase class are common to markers which can be displayed by series of different types, and allow you to specify a marker’s background fill style (MarkerBase.FillStyle), border settings (MarkerBase.BorderColor, MarkerBase.BorderVisible), define the marker shape (MarkerBase.Kind) and the number of points for star-shaped markers (MarkerBase.StarPointCount).
Note that the color of markers within a point series is specified by the SeriesViewBase.Color property of the series object itself.
An object of the MarkerBase can be accessed via the BubbleSeriesView.BubbleMarkerOptions property of a Bubble series object.
Example
The following example demonstrates how to create a ChartControl with a series of the PointSeriesView 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 System;
using System.Windows.Forms;
using DevExpress.XtraCharts;
// ...
private void Form1_Load(object sender, EventArgs e) {
// Create a new chart.
ChartControl pointChart = new ChartControl();
// Create a point series.
Series series1 = new Series("Series 1", ViewType.Point);
// Set the numerical argument scale type for the series,
// as it is qualitative, by default.
series1.ArgumentScaleType = ScaleType.Numerical;
// Add points to it.
series1.Points.Add(new SeriesPoint(1, 10));
series1.Points.Add(new SeriesPoint(2, 22));
series1.Points.Add(new SeriesPoint(3, 14));
series1.Points.Add(new SeriesPoint(4, 27));
series1.Points.Add(new SeriesPoint(5, 15));
series1.Points.Add(new SeriesPoint(6, 28));
series1.Points.Add(new SeriesPoint(7, 15));
series1.Points.Add(new SeriesPoint(8, 33));
// Add the series to the chart.
pointChart.Series.Add(series1);
// Access the view-type-specific options of the series.
PointSeriesView myView1 = (PointSeriesView)series1.View;
myView1.PointMarkerOptions.Kind = MarkerKind.Star;
myView1.PointMarkerOptions.StarPointCount = 5;
myView1.PointMarkerOptions.Size = 20;
// Access the type-specific options of the diagram.
((XYDiagram)pointChart.Diagram).EnableAxisXZooming = true;
// Hide the legend (if necessary).
pointChart.Legend.Visible = false;
// Add a title to the chart (if necessary).
pointChart.Titles.Add(new ChartTitle());
pointChart.Titles[0].Text = "A Point Chart";
// Add the chart to the form.
pointChart.Dock = DockStyle.Fill;
this.Controls.Add(pointChart);
}