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DxTreeView.SelectionChanged Event

Fires after node selection has been changed.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v22.1.dll


public Action<TreeViewNodeEventArgs> SelectionChanged { get; set; }

Event Data

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

Property Description
CausedByAPI Specifies whether an event was triggered by a user action or programmatically.
NodeInfo Returns information about a node related to the event.


Write a SelectionChanged event handler to perform specified actions each time a node selection is changed by end-user interaction.

<DxTreeView AllowSelectNodes="true" 

@code  {
    string SelectedGroup = "none";

    void SelectionChanged(TreeViewNodeEventArgs e) {
        SelectedGroup = e.NodeInfo.Text;

The image below shows the result.

TreeView Node Selection

Online Demo

TreeView - Selection

See Also