LineSeriesView.LineMarkerOptions Property

Gets the specific settings of the data point markers displayed by a series of the line view type.

Assembly : DevExpress.XtraCharts.v25.2.dll

Declaration

C#
VB.NET

csharp

[PersistenceMode(PersistenceMode.InnerProperty)]
[XtraChartsLocalizableCategory(XtraChartsCategory.Appearance)]
public Marker LineMarkerOptions { get; }

<PersistenceMode(PersistenceMode.InnerProperty)>
<XtraChartsLocalizableCategory(XtraChartsCategory.Appearance)>
Public ReadOnly Property LineMarkerOptions As Marker

Property Value

Type	Description
Marker

A Marker object that contains the specific marker settings.

Remarks

The LineMarkerOptions property provides access to the settings which define how the data point markers are displayed within a series of the line or step line type.

Note that the settings available via the LineMarkerOptions property can affect the appearance of any related elements (such as series labels and connection lines between markers and labels) if these elements are not customized independently (for instance, via the SeriesBase.Label property).

Example

The following example demonstrates how to create a ChartControl with a series of the LineSeriesView 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.

View Example

C#
VB.NET

csharp

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

namespace Series_LineChart {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
        }

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

            // Create a line series.
            Series series1 = new Series("Series 1", ViewType.Line);

            // Add points to it.
            series1.Points.Add(new SeriesPoint(1, 2));
            series1.Points.Add(new SeriesPoint(2, 12));
            series1.Points.Add(new SeriesPoint(3, 14));
            series1.Points.Add(new SeriesPoint(4, 17));

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

            // Set the numerical argument scale types for the series,
            // as it is qualitative, by default.
            series1.ArgumentScaleType = ScaleType.Numerical;

            // Access the view-type-specific options of the series.
            ((LineSeriesView)series1.View).MarkerVisibility = DevExpress.Utils.DefaultBoolean.True;
            ((LineSeriesView)series1.View).LineMarkerOptions.Size = 20;
            ((LineSeriesView)series1.View).LineMarkerOptions.Kind = MarkerKind.Triangle;
            ((LineSeriesView)series1.View).LineStyle.DashStyle = DashStyle.Dash;

            // Access the view-type-specific options of the series.
            ((XYDiagram)lineChart.Diagram).AxisY.Interlaced = true;
            ((XYDiagram)lineChart.Diagram).AxisY.InterlacedColor = Color.FromArgb(20, 60, 60, 60);
            ((XYDiagram)lineChart.Diagram).AxisX.NumericScaleOptions.AutoGrid = false;
            ((XYDiagram)lineChart.Diagram).AxisX.NumericScaleOptions.GridSpacing = 1;

            // Hide the legend (if necessary).
            lineChart.Legend.Visibility = DevExpress.Utils.DefaultBoolean.False;

            // Add a title to the chart (if necessary).
            lineChart.Titles.Add(new ChartTitle());
            lineChart.Titles[0].Text = "Line Chart";

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

Imports System
Imports System.Windows.Forms
Imports DevExpress.XtraCharts
Imports System.Drawing

' ...
Namespace Series_LineChart

    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 a new chart.
            Dim lineChart As ChartControl = New ChartControl()
            ' Create a line series.
            Dim series1 As Series = New Series("Series 1", ViewType.Line)
            ' Add points to it.
            series1.Points.Add(New SeriesPoint(1, 2))
            series1.Points.Add(New SeriesPoint(2, 12))
            series1.Points.Add(New SeriesPoint(3, 14))
            series1.Points.Add(New SeriesPoint(4, 17))
            ' Add the series to the chart.
            lineChart.Series.Add(series1)
            ' Set the numerical argument scale types for the series,
            ' as it is qualitative, by default.
            series1.ArgumentScaleType = ScaleType.Numerical
            ' Access the view-type-specific options of the series.
            CType(series1.View, LineSeriesView).MarkerVisibility = DevExpress.Utils.DefaultBoolean.True
            CType(series1.View, LineSeriesView).LineMarkerOptions.Size = 20
            CType(series1.View, LineSeriesView).LineMarkerOptions.Kind = MarkerKind.Triangle
            CType(series1.View, LineSeriesView).LineStyle.DashStyle = DashStyle.Dash
            ' Access the view-type-specific options of the series.
            CType(lineChart.Diagram, XYDiagram).AxisY.Interlaced = True
            CType(lineChart.Diagram, XYDiagram).AxisY.InterlacedColor = Color.FromArgb(20, 60, 60, 60)
            CType(lineChart.Diagram, XYDiagram).AxisX.NumericScaleOptions.AutoGrid = False
            CType(lineChart.Diagram, XYDiagram).AxisX.NumericScaleOptions.GridSpacing = 1
            ' Hide the legend (if necessary).
            lineChart.Legend.Visibility = DevExpress.Utils.DefaultBoolean.False
            ' Add a title to the chart (if necessary).
            lineChart.Titles.Add(New ChartTitle())
            lineChart.Titles(0).Text = "Line Chart"
            ' Add the chart to the form.
            lineChart.Dock = DockStyle.Fill
            Me.Controls.Add(lineChart)
        End Sub
    End Class
End Namespace