PointData Class

A series point that has one value per argument.

Namespace: DevExpress.WinUI.Charts

Assembly: DevExpress.WinUI.Charts.v22.1.dll

NuGet Package: DevExpress.WinUI

Declaration

C#

public class PointData :
    PointDataBase

VB.NET

Public Class PointData
    Inherits PointDataBase

Related API Members

The following members return PointData objects:

• PointDataCollection.GetObjectByKey(Int32)
• PointDataCollection.Item[Int32]

Remarks

The DataPoint class implements the functionality of an individual data point in a series. Each point has two coordinates.

X-coordinate (the point’s argument)

Use the PointDataBase.Argument property to specify the point argument. To explicitly indicate the argument type, set the PointDataBase.ArgumentScaleType property.

Y-coordinate (the point’s value)

Use the PointData.Value property to specify the point value. To explicitly indicate the value type, set the PointDataBase.ValueScaleType property.

Note

If a point’s argument or value is missed, this point is considered empty and is not drawn on the chart. Instead, the chart displays a gap in series data.

To add a point to a series, add a PointData object to the Series.Data collection (a PointDataCollection class instance).

Example

This example creates a Cartesian chart with 3 Stacked Bar series, populates them with data, and adjusts common settings.

XAML

<Window

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:CartesianChart"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:Charts="using:DevExpress.WinUI.Charts"
    x:Class="CartesianChart.MainWindow"
    mc:Ignorable="d">

    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
        <Charts:CartesianChart Margin="50">
            <Charts:CartesianChart.Legend>
                <Charts:Legend BorderThickness="0" Margin="0,-5,0,-5"/>
            </Charts:CartesianChart.Legend>
            <Charts:CartesianChart.Series>
                <Charts:Series DisplayName="Illinois">
                    <Charts:Series.View>
                        <Charts:BarSeriesView StackedMode="Stacked"/>
                    </Charts:Series.View>
                    <Charts:Series.Data>
                        <Charts:PointDataCollection ArgumentScaleType="Qualitative">
                            <Charts:PointData Argument="1998" Value="423.721"/>
                            <Charts:PointData Argument="2001" Value="476.851"/>
                            <Charts:PointData Argument="2004" Value="528.904"/>
                        </Charts:PointDataCollection>
                    </Charts:Series.Data>
                </Charts:Series>
                <Charts:Series DisplayName="Indiana">
                    <Charts:Series.View>
                        <Charts:BarSeriesView StackedMode="Stacked"/>
                    </Charts:Series.View>
                    <Charts:Series.Data>
                        <Charts:PointDataCollection ArgumentScaleType="Qualitative">
                            <Charts:PointData Argument="1998" Value="178.719" />
                            <Charts:PointData Argument="2001" Value="195.769" />
                            <Charts:PointData Argument="2004" Value="227.271" />
                        </Charts:PointDataCollection>
                    </Charts:Series.Data>
                </Charts:Series>
                <Charts:Series DisplayName="Michigan" >
                    <Charts:Series.View>
                        <Charts:BarSeriesView StackedMode="Stacked"/>
                    </Charts:Series.View>
                    <Charts:Series.Data>
                        <Charts:PointDataCollection ArgumentScaleType="Qualitative">
                            <Charts:PointData Argument="1998" Value="308.845" />
                            <Charts:PointData Argument="2001" Value="335.793" />
                            <Charts:PointData Argument="2004" Value="372.576" />
                        </Charts:PointDataCollection>
                    </Charts:Series.Data>
                </Charts:Series>
            </Charts:CartesianChart.Series>
        </Charts:CartesianChart>
    </Grid>
</Window>

Inheritance

Object

PointDataBase

PointData