WebChartControl.SelectedItemsChanged Event
Occurs after chart items are selected.
Namespace: DevExpress.XtraCharts.Web
Assembly: DevExpress.XtraCharts.v19.2.Web.dll
Declaration
Event Data
The SelectedItemsChanged event's data class is SelectedItemsChangedEventArgs. The following properties provide information specific to this event:
Property | Description |
---|---|
Action | Gets an action which describes how the collection has been changed. |
NewItems | Provides access to a collection of new selected chart elements (series and series points) and business data objects if a Chart Control or a series is bound to a data source. |
OldItems | Provides access to previously selected chart elements (series and series points) and business data objects if a Chart Control or a series is bound to a data source. |
Remarks
Use the SelectedItemsChanged event to customize the WebChartControl when the chart items including business data objects (if the control is connected to a data source) are selected.
For instance, you can display only bar series which correspond to the selected pie segments:
Note
A complete sample project is available at https://github.com/DevExpress-Examples/webchartcontrol-track-changes-to-the-collection-of-chart-selected-items
<dx:WebChartControl ID="WebChartControlPie" EnableCallBacks="False" runat="server" Height="250px" Width="700px" CrosshairEnabled="False" RenderFormat="Svg"
ClientInstanceName="chartTotal" OnObjectSelected="WebChartControlPie_ObjectSelected" DataSourceID="chartDataSource1"
SelectionMode="Multiple" SeriesSelectionMode="Point" OnSelectedItemsChanged="WebChartControlPie_SelectedItemsChanged">
</dx:WebChartControl>
See Also