TreeListView.SelectionChanged Event

OBSOLETE

Use the TreeListControl.SelectionChanged event instead

Occurs after treelist’s selection has been changed.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v24.2.dll

NuGet Package: DevExpress.Wpf.Grid.Core

Declaration

C#

[Obsolete("Use the TreeListControl.SelectionChanged event instead")]
[Browsable(false)]
public event TreeListSelectionChangedEventHandler SelectionChanged

VB.NET

<Obsolete("Use the TreeListControl.SelectionChanged event instead")>
<Browsable(False)>
Public Event SelectionChanged As TreeListSelectionChangedEventHandler

Event Data

The SelectionChanged event's data class is TreeListSelectionChangedEventArgs. The following properties provide information specific to this event:

Property	Description
Action	Gets an action which indicates how the grid’s selection has been changed. Inherited from GridSelectionChangedEventArgs.
ControllerRow	Identifies the row whose selected state has been changed. Inherited from GridSelectionChangedEventArgs.
Handled	Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs.
Node	Gets a node whose selected state has been changed.
OriginalSource	Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.
RoutedEvent	Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs.
Source	Gets or sets a reference to the object that raised the event. Inherited from RoutedEventArgs.

The event data class exposes the following methods:

Method	Description
InvokeEventHandler(Delegate, Object)	When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation. Inherited from RoutedEventArgs.
OnSetSource(Object)	When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes. Inherited from RoutedEventArgs.

Remarks

Each time the treelist’s selection is changed, the SelectionChanged event is raised. The event parameter’s GridSelectionChangedEventArgs.Action property indicates how the selection has been changed. The TreeListSelectionChangedEventArgs.Node property returns the node whose selected state has been changed.

The SelectionChanged event is not fired if the DataControlBase.SelectionMode is set to TableViewSelectMode.None.

To learn more, see Multiple Row Selection.