SeriesPointCollection Class
Represents a collection that stores the data points of an individual series.
Namespace: DevExpress.Xpf.Charts
Assembly: DevExpress.Xpf.Charts.v24.2.dll
NuGet Package: DevExpress.Wpf.Charts
Declaration
[NonCategorized]
public class SeriesPointCollection :
ChartElementCollection<SeriesPoint>,
IList<SeriesPoint>,
ICollection<SeriesPoint>,
IEnumerable<SeriesPoint>,
IEnumerable,
IList,
ICollectionRelated API Members
The following members return SeriesPointCollection objects:
Remarks
Each series represents a set of data points. A series holds its data points within its Series.Points collection, represented by the SeriesPointCollection class. The properties and methods exposed by the SeriesPointCollection class can be used to perform common collection operations such as adding new or deleting existing items. Each item of the collection is represented by a SeriesPoint object. Individual items can be accessed using indexer notation.
Data points are automatically added to a collection of the SeriesPointCollection type when a series is bound to a data source (data binding can be performed using a series’ Series.DataSource property). If a series is not bound to data, the collection of data points can be populated manually, at design time or runtime.
Example
This example shows how to create a 2D Side-by-Side Bar chart.
Create a ChartControl and set its ChartControl.Diagram property to a XYDiagram2D object. Note that the ChartControl.Diagram is a content property. You can declare a diagram in XAML directly after a chart control’s declaration without wrapping it in opening and closing ChartControl.Diagram tags.
Specify the Diagram.SeriesItemsSource property to bind a collection of objects used to generate series.
The Diagram.SeriesItemTemplate property allows you to define a template for all series. Use the following API members to configure a series item:
Member Description BarSideBySideSeries2D Represents the 2D Side-by-Side Bar series. Series.DataSource Specifies the series’s data source. Series.ArgumentDataMember Defines the data member that provides the series’s arguments. Series.ValueDataMember Specifies the data member that provides the series’s values. Series.DisplayName Gets or sets the display name of the series. For more information on how to populate a chart with data, see the following section: Providing Data
Use the following API members to configure the x-axis options.
Member Description XYDiagram2D.AxisX Gets the X-axis. AxisX2D Represents the X-axis of a XYDiagram2D class. AxisX2D.DateTimeScaleOptions Provides access to the options that define the behavior of a date-time X-scale when its mode is manual, automatic or continuous. Create a legend and customize its settings. For more information about legends, refer to the following topic: Legends
<Window x:Class="SideBySideBar2DChart.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:SideBySideBar2DChart"
Title="Window1" Height="350" Width="620">
<Window.DataContext>
<local:ChartViewModel/>
</Window.DataContext>
<Grid>
<dxc:ChartControl Name="chartControl1">
<dxc:ChartControl.Diagram>
<dxc:XYDiagram2D SeriesItemsSource="{Binding Data}">
<dxc:XYDiagram2D.SeriesItemTemplate>
<DataTemplate>
<dxc:BarSideBySideSeries2D DisplayName="{Binding Name}"
DataSource="{Binding Values}"
ArgumentDataMember="Argument"
ValueDataMember="Value"
BarWidth="0.6">
<dxc:BarSideBySideSeries2D.Model>
<dxc:BorderlessSimpleBar2DModel/>
</dxc:BarSideBySideSeries2D.Model>
</dxc:BarSideBySideSeries2D>
</DataTemplate>
</dxc:XYDiagram2D.SeriesItemTemplate>
<dxc:XYDiagram2D.AxisX>
<dxc:AxisX2D>
<dxc:AxisX2D.DateTimeScaleOptions>
<dxc:ManualDateTimeScaleOptions MeasureUnit="Year" GridAlignment="Year"
AutoGrid="False" GridSpacing="1"/>
</dxc:AxisX2D.DateTimeScaleOptions>
</dxc:AxisX2D>
</dxc:XYDiagram2D.AxisX>
</dxc:XYDiagram2D>
</dxc:ChartControl.Diagram>
<dxc:ChartControl.Legends>
<dxc:Legend HorizontalPosition="Right"/>
</dxc:ChartControl.Legends>
</dxc:ChartControl>
</Grid>
</Window>
using System;
using System.Collections.ObjectModel;
using System.Windows;
namespace SideBySideBar2DChart {
public partial class Window1 : Window {
public Window1() {
InitializeComponent();
}
}
public class ChartViewModel {
public ObservableCollection<DataSeries> Data { get; private set; }
public ChartViewModel() {
Data = new ObservableCollection<DataSeries> {
new DataSeries{
Name = "DevAV North",
Values = new ObservableCollection<DataPoint> {
new DataPoint (new DateTime(2013,12,31), 362.5),
new DataPoint (new DateTime(2014,12,31), 348.4),
new DataPoint (new DateTime(2015,12,31), 279.0),
new DataPoint (new DateTime(2016,12,31), 230.9),
new DataPoint (new DateTime(2017,12,31), 203.5),
new DataPoint (new DateTime(2018,12,31), 197.1)
}
},
new DataSeries{
Name = "DevAV South",
Values = new ObservableCollection<DataPoint> {
new DataPoint (new DateTime(2013,12,31), 277.0),
new DataPoint (new DateTime(2014,12,31), 328.5),
new DataPoint (new DateTime(2015,12,31), 297.0),
new DataPoint (new DateTime(2016,12,31), 255.3),
new DataPoint (new DateTime(2017,12,31), 173.5),
new DataPoint (new DateTime(2018,12,31), 131.8)
}
}
};
}
public class DataSeries {
public string Name { get; set; }
public ObservableCollection<DataPoint> Values { get; set; }
}
public class DataPoint {
public DateTime Argument { get; set; }
public double Value { get; set; }
public DataPoint(DateTime argument, double value) {
Argument = argument;
Value = value;
}
}
}
}