Marker Interface

Represents a data marker displayed at each data point in the series on the line, scatter or radar chart.

Namespace: DevExpress.Spreadsheet.Charts

Assembly: DevExpress.Spreadsheet.v18.2.Core.dll

Declaration

C#

public interface Marker :
    ShapeFormat,
    ShapeFormatBase

VB.NET

Public Interface Marker
    Inherits ShapeFormat,
             ShapeFormatBase

Related API Members

The following members return Marker objects:

• DataPoint.Marker
• Series.Marker

Remarks

The Marker interface contains properties that allow you to specify the size (Marker.Size) and shape (Marker.Symbol) of data markers indicating each data point in the series.

An object exposing the Marker interface can be accessed via the Series.Marker property of a series object.

Example

The example below demonstrates how to create a line chart with custom data markers. To access the Marker object, use the Series.Marker property, and then specify the shape (Marker.Symbol) and size (Marker.Size) of markers displayed at each data point in the series.

Note

A complete sample project is available at https://github.com/DevExpress-Examples/winforms-spreadsheet-chart-api-e5222

ViewOptionsActions.vb

Dim worksheet As Worksheet = workbook.Worksheets("chartTask5")
workbook.Worksheets.ActiveWorksheet = worksheet

' Create a chart and specify its location.
Dim chart As Chart = worksheet.Charts.Add(ChartType.Line, worksheet("B2:C8"))
chart.TopLeftCell = worksheet.Cells("F2")
chart.BottomRightCell = worksheet.Cells("L15")

' Display markers and specify the marker style and size.
chart.Series(0).Marker.Symbol = MarkerStyle.Circle
chart.Series(0).Marker.Size = 15
' Hide the legend.
chart.Legend.Visible = False

ViewOptionsActions.cs

Worksheet worksheet = workbook.Worksheets["chartTask5"];
workbook.Worksheets.ActiveWorksheet = worksheet;

// Create a chart and specify its location.
Chart chart = worksheet.Charts.Add(ChartType.Line, worksheet["B2:C8"]);
chart.TopLeftCell = worksheet.Cells["F2"];
chart.BottomRightCell = worksheet.Cells["L15"];

// Display markers and specify the marker style and size.
chart.Series[0].Marker.Symbol = MarkerStyle.Circle;
chart.Series[0].Marker.Size = 15;
// Hide the legend.
chart.Legend.Visible = false;