RadarDiagram.DrawingStyle Property

public RadarDiagramDrawingStyle DrawingStyle { get; set; }

Public Property DrawingStyle As RadarDiagramDrawingStyle

using System;
using System.Windows.Forms;
using DevExpress.XtraCharts;
// ...

private void Form1_Load(object sender, EventArgs e) {
    // Create a new chart.
    ChartControl RadarPointChart = new ChartControl();

    // Add a radar series to it.
    Series series1 = new Series("Series 1", ViewType.RadarPoint);

    // Populate the series with points.
    series1.Points.Add(new SeriesPoint(0, 90));
    series1.Points.Add(new SeriesPoint(90, 95));
    series1.Points.Add(new SeriesPoint(180, 50));
    series1.Points.Add(new SeriesPoint(270, 55));
    series1.Points.Add(new SeriesPoint(0, 180));
    series1.Points.Add(new SeriesPoint(90, 185));
    series1.Points.Add(new SeriesPoint(180, 270));
    series1.Points.Add(new SeriesPoint(270, 275));

    // Add the series to the chart.
    RadarPointChart.Series.Add(series1);

    // Flip the diagram (if necessary).
    ((RadarDiagram)RadarPointChart.Diagram).StartAngleInDegrees = 180;
    ((RadarDiagram)RadarPointChart.Diagram).RotationDirection =
        RadarDiagramRotationDirection.Counterclockwise;

    // Add a title to the chart and hide the legend.
    ChartTitle chartTitle1 = new ChartTitle();
    chartTitle1.Text = "Radar Point Chart";
    RadarPointChart.Titles.Add(chartTitle1);
    RadarPointChart.Legend.Visible = false;

    // Add the chart to the form.
    RadarPointChart.Dock = DockStyle.Fill;
    this.Controls.Add(RadarPointChart);
}

Imports System
Imports System.Windows.Forms
Imports DevExpress.XtraCharts
' ...

Private Sub Form1_Load(ByVal sender As Object, _ 
ByVal e As EventArgs) Handles MyBase.Load
    ' Create a new chart.
    Dim RadarPointChart As New ChartControl()

    ' Add a radar series to it.
    Dim series1 As New Series("Series 1", ViewType.RadarPoint)

    ' Populate the series with points.
    series1.Points.Add(New SeriesPoint(0, 90))
    series1.Points.Add(New SeriesPoint(90, 95))
    series1.Points.Add(New SeriesPoint(180, 50))
    series1.Points.Add(New SeriesPoint(270, 55))
    series1.Points.Add(New SeriesPoint(0, 180))
    series1.Points.Add(New SeriesPoint(90, 185))
    series1.Points.Add(New SeriesPoint(180, 270))
    series1.Points.Add(New SeriesPoint(270, 275))

    ' Add the series to the chart.
    RadarPointChart.Series.Add(series1)

    ' Flip the diagram (if necessary).
    CType(RadarPointChart.Diagram, RadarDiagram).StartAngleInDegrees = 180
    CType(RadarPointChart.Diagram, RadarDiagram).RotationDirection = _ 
        RadarDiagramRotationDirection.Counterclockwise

    ' Add a title to the chart and hide the legend.
    Dim chartTitle1 As New ChartTitle()
    chartTitle1.Text = "Radar Point Chart"
    RadarPointChart.Titles.Add(chartTitle1)
    RadarPointChart.Legend.Visible = False

    ' Add the chart to the form.
    RadarPointChart.Dock = DockStyle.Fill
    Me.Controls.Add(RadarPointChart)
End Sub