ChartControl.SelectedItemsChanging Event
Occurs before the Chart Control’s selected items collection is changed, enabling a handler to cancel the selection change.
Namespace: DevExpress.XtraCharts
Assembly: DevExpress.XtraCharts.v23.2.UI.dll
NuGet Package: DevExpress.Win.Charts
Declaration
Event Data
The SelectedItemsChanging event's data class is SelectedItemsChangingEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| Action | Gets an action which describes how the collection has been changed. |
| Cancel | Gets or sets the value identifying whether the selection change is canceled. |
| 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
This event fires before the selection is changed. It can be handled to customize the Chart control’s selection. The event’s Cancel parameter that allows you to prevent the chart item from being selected.
Related GitHub Examples
The following code snippets (auto-collected from DevExpress Examples) contain references to the SelectedItemsChanging event.
Note
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