wpf-devexpress-dot-xpf-dot-charts-dot-rangeareaseries2d-dot-value2.md
Gets or sets the second value of the range area series points.
Namespace : DevExpress.Xpf.Charts
Assembly : DevExpress.Xpf.Charts.v25.2.dll
NuGet Package : DevExpress.Wpf.Charts
See GetValue2(SeriesPoint) and SetValue2(SeriesPoint, Double).
| Type | Description |
|---|---|
| Double |
A Double value.
|
The following example demonstrates how to create a Range Area chart:
Assign the ChartControl.Diagram property to XYDiagram2D.
Add a RangeAreaSeries2D object to the diagram’s Diagram.Series collection.
Specify the following series properties:
<Window x:Class="RangeArea2DChart.MainWindow"
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:RangeArea2DChart"
Title="MainWindow" Height="350" Width="640">
<Grid>
<dxc:ChartControl Name="chartControl1">
<dxc:ChartControl.DataContext>
<local:ChartViewModel/>
</dxc:ChartControl.DataContext>
<dxc:ChartControl.Diagram>
<dxc:XYDiagram2D>
<dxc:XYDiagram2D.Series>
<dxc:RangeAreaSeries2D DisplayName="Day-Night"
DataSource="{Binding DataPoints}"
ArgumentScaleType="DateTime"
ArgumentDataMember="Time"
ValueDataMember="Value1"
dxc:RangeAreaSeries2D.Value2DataMember="Value2"
Transparency="0.3"
Marker1Visible="False" Marker2Visible="False"
LabelsVisibility="True"
CrosshairLabelPattern="{}{A:MMMM} D: {V1:f2} N: {V2:f2}">
<dxc:RangeAreaSeries2D.Label>
<dxc:SeriesLabel TextPattern="{}{V:f1}"/>
</dxc:RangeAreaSeries2D.Label>
</dxc:RangeAreaSeries2D>
</dxc:XYDiagram2D.Series>
<dxc:XYDiagram2D.AxisX>
<dxc:AxisX2D GridLinesVisible="True">
<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">Average Temperature</dxc:Title>
</dxc:ChartControl.Titles>
</dxc:ChartControl>
</Grid>
</Window>
using System;
using System.Collections.Generic;
using System.Windows;
namespace RangeArea2DChart {
//..
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, 2.7),
new DataPoint (new DateTime(2019, 2, 1), 8.3, 2.8),
new DataPoint (new DateTime(2019, 3, 1), 12.2, 5.3),
new DataPoint (new DateTime(2019, 4, 1), 15.6, 7.3),
new DataPoint (new DateTime(2019, 5, 1), 19.6, 10.9),
new DataPoint (new DateTime(2019, 6, 1), 22.7, 13.8),
new DataPoint (new DateTime(2019, 7, 1), 25.2, 15.8),
new DataPoint (new DateTime(2019, 8, 1), 25, 15.7),
new DataPoint (new DateTime(2019, 9, 1), 21.1, 12.7),
new DataPoint (new DateTime(2019, 10, 1), 16.3, 9.6),
new DataPoint (new DateTime(2019, 11, 1), 10.8, 5.8),
new DataPoint (new DateTime(2019, 12, 1), 7.5, 3.4)
};
}
return dataPoints;
}
}
}
public class DataPoint {
public DateTime Time { get; set; }
public double Value1 { get; set; }
public double Value2 { get; set; }
public DataPoint(DateTime time, double value1, double value2) {
this.Time = time;
this.Value1 = value1;
this.Value2 = value2;
}
}
}
Imports System
Imports System.Collections.Generic
Namespace RangeArea2DChart
Public Class ChartViewModel
Private f_DataPoints As List(Of DataPoint)
Public ReadOnly Property DataPoints As List(Of DataPoint)
Get
If f_DataPoints Is Nothing Then
f_DataPoints = New List(Of DataPoint) From {
New DataPoint(New DateTime(2019, 1, 1), 7.2, 2.7),
New DataPoint(New DateTime(2019, 2, 1), 8.3, 2.8),
New DataPoint(New DateTime(2019, 3, 1), 12.2, 5.3),
New DataPoint(New DateTime(2019, 4, 1), 15.6, 7.3),
New DataPoint(New DateTime(2019, 5, 1), 19.6, 10.9),
New DataPoint(New DateTime(2019, 6, 1), 22.7, 13.8),
New DataPoint(New DateTime(2019, 7, 1), 25.2, 15.8),
New DataPoint(New DateTime(2019, 8, 1), 25, 15.7),
New DataPoint(New DateTime(2019, 9, 1), 21.1, 12.7),
New DataPoint(New DateTime(2019, 10, 1), 16.3, 9.6),
New DataPoint(New DateTime(2019, 11, 1), 10.8, 5.8),
New DataPoint(New DateTime(2019, 12, 1), 7.5, 3.4)
}
End If
Return f_DataPoints
End Get
End Property
End Class
Public Class DataPoint
Public Property Time As Date
Public Property Value1 As Double
Public Property Value2 As Double
Public Sub New(ByVal time As Date, ByVal value1 As Double, ByVal value2 As Double)
Me.Time = time
Me.Value1 = value1
Me.Value2 = value2
End Sub
End Class
End Namespace
See Also