wpf-devexpress-dot-xpf-dot-charts-dot-pointseries2d-b2827f2a.md
Gets or sets the size of series point markers.
Namespace : DevExpress.Xpf.Charts
Assembly : DevExpress.Xpf.Charts.v25.2.dll
NuGet Package : DevExpress.Wpf.Charts
public int MarkerSize { get; set; }
Public Property MarkerSize As Integer
| Type | Description |
|---|---|
| Int32 |
The marker height and width in pixels. The default value is 10.
|
This example shows how to create a 2D Point chart and configure its titles, label format, axes, and appearance.
Follow the steps below to create a 2D Point chart:
Create a ChartControl and set its DataContext property to a ViewModel.
Set the chart’s Diagram property to an XYDiagram2D object.
Add a PointSeries2D to the diagram’s Series collection.
Specify the following series parameters to bind the series to data:
Set the Series.LabelsVisibility property to True to display point labels. Specify the SeriesLabel.TextPattern property to format labels.
Use the XYDiagram2D.AxisX and XYDiagram2D.AxisY properties to customize axes (scale options, title, and labels). Refer to the following help topic for more information about axes: Axes.
Add a Title object to the ChartControl.Titles collection, and specify title content. Refer to the following topic for more information about titles: Chart Titles.
<Window x:Class="Point2DChart.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:dxc="http://schemas.devexpress.com/winfx/2008/xaml/charts"
xmlns:local ="clr-namespace:Point2DChart"
Title="Window1" Height="350" Width="620">
<Grid>
<dxc:ChartControl Name="chartControl1">
<dxc:ChartControl.DataContext>
<local:ChartViewModel/>
</dxc:ChartControl.DataContext>
<dxc:ChartControl.Diagram>
<dxc:XYDiagram2D>
<dxc:XYDiagram2D.Series>
<dxc:PointSeries2D DisplayName="Day Temperature"
DataSource="{Binding DataPoints}"
ArgumentScaleType="DateTime"
ArgumentDataMember="Time"
ValueDataMember="Value"
LabelsVisibility="True"
CrosshairLabelPattern="{}{A:MMMM}: {V:f2}°C"
MarkerSize="14">
<dxc:PointSeries2D.MarkerModel>
<dxc:RingMarker2DModel/>
</dxc:PointSeries2D.MarkerModel>
<dxc:PointSeries2D.Label>
<dxc:SeriesLabel TextPattern="{}{V:f1}"
dxc:MarkerSeries2D.Angle="90"
ConnectorVisible="False"/>
</dxc:PointSeries2D.Label>
</dxc:PointSeries2D>
</dxc:XYDiagram2D.Series>
<dxc:XYDiagram2D.AxisX>
<dxc:AxisX2D TickmarksMinorVisible="False">
<dxc:AxisX2D.WholeRange>
<dxc:Range SideMarginsValue="10"/>
</dxc:AxisX2D.WholeRange>
<dxc:AxisX2D.Label>
<dxc:AxisLabel TextPattern="{}{A:MMM}"/>
</dxc:AxisX2D.Label>
<dxc:AxisX2D.DateTimeScaleOptions>
<dxc:ManualDateTimeScaleOptions GridSpacing="1"
GridAlignment="Month"
AutoGrid="False"/>
</dxc:AxisX2D.DateTimeScaleOptions>
</dxc:AxisX2D>
</dxc:XYDiagram2D.AxisX>
<dxc:XYDiagram2D.AxisY>
<dxc:AxisY2D>
<dxc:AxisY2D.Title>
<dxc:AxisTitle Content="Temperature (°C)"/>
</dxc:AxisY2D.Title>
</dxc:AxisY2D>
</dxc:XYDiagram2D.AxisY>
</dxc:XYDiagram2D>
</dxc:ChartControl.Diagram>
<dxc:ChartControl.Titles>
<dxc:Title Dock="Top"
HorizontalAlignment="Center"
Content="Average Day Temperature"/>
</dxc:ChartControl.Titles>
</dxc:ChartControl>
</Grid>
</Window>
using System;
using System.Collections.Generic;
using System.Windows;
namespace Point2DChart {
public class ChartViewModel {
List<DataPoint> dataPoints;
public List<DataPoint> DataPoints {
get {
if (dataPoints == null) {
dataPoints = new List<DataPoint> {
new DataPoint (new DateTime(2019, 1, 1), 7.2),
new DataPoint (new DateTime(2019, 2, 1), 8.3),
new DataPoint (new DateTime(2019, 3, 1), 12.2),
new DataPoint (new DateTime(2019, 4, 1), 15.6),
new DataPoint (new DateTime(2019, 5, 1), 19.6),
new DataPoint (new DateTime(2019, 6, 1), 22.7),
new DataPoint (new DateTime(2019, 7, 1), 25.2),
new DataPoint (new DateTime(2019, 8, 1), 25),
new DataPoint (new DateTime(2019, 9, 1), 21.1),
new DataPoint (new DateTime(2019, 10, 1), 16.3),
new DataPoint (new DateTime(2019, 11, 1), 10.8),
new DataPoint (new DateTime(2019, 12, 1), 7.5)
};
}
return dataPoints;
}
}
}
public class DataPoint {
public DateTime Time { get; set; }
public double Value { get; set; }
public DataPoint(DateTime time, double value) {
this.Time = time;
this.Value = value;
}
}
}
Imports System
Imports System.Collections.Generic
Namespace Point2DChart
Public Class ChartViewModel
Private dataPointsField As List(Of DataPoint)
Public ReadOnly Property DataPoints As List(Of DataPoint)
Get
If dataPointsField Is Nothing Then
dataPointsField = New List(Of DataPoint) From {New DataPoint(New DateTime(2019, 1, 1), 7.2), New DataPoint(New DateTime(2019, 2, 1), 8.3), New DataPoint(New DateTime(2019, 3, 1), 12.2), New DataPoint(New DateTime(2019, 4, 1), 15.6), New DataPoint(New DateTime(2019, 5, 1), 19.6), New DataPoint(New DateTime(2019, 6, 1), 22.7), New DataPoint(New DateTime(2019, 7, 1), 25.2), New DataPoint(New DateTime(2019, 8, 1), 25), New DataPoint(New DateTime(2019, 9, 1), 21.1), New DataPoint(New DateTime(2019, 10, 1), 16.3), New DataPoint(New DateTime(2019, 11, 1), 10.8), New DataPoint(New DateTime(2019, 12, 1), 7.5)}
End If
Return dataPointsField
End Get
End Property
End Class
Public Class DataPoint
Public Property Time As Date
Public Property Value As Double
Public Sub New(ByVal time As Date, ByVal value As Double)
Me.Time = time
Me.Value = value
End Sub
End Class
End Namespace
See Also