TreeView.OnSelectedNodeChanged Method

Note: This method is new in the .NET Framework version 2.0.

Raises the SelectedNodeChanged event of the TreeView control.

Namespace: System.Web.UI.WebControls
Assembly: System.Web (in system.web.dll)

protected:
virtual void OnSelectedNodeChanged (
	EventArgs^ e
)
protected void OnSelectedNodeChanged (
	EventArgs e
)
protected function OnSelectedNodeChanged (
	e : EventArgs
)

Parameters

e

An System.EventArgs that contains event data.

The SelectedNodeChanged event is raised when a node is selected in the TreeView control. This allows you to provide an event-handling method that performs a custom routine, such as updating the displayed content, whenever this event occurs.

You can optionally set the SelectAction property of a node to specify which event is raised when that node is selected.

NoteNote

The HoverNodeStyle is not rendered for a node with its SelectAction property set to TreeNodeSelectAction.None.

Raising an event invokes the event handler through a delegate. For more information, see Consuming Events.

The OnSelectedNodeChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors When overriding the OnSelectedNodeChanged method in a derived class, be sure to call the OnSelectedNodeChanged method for the base class so that registered delegates receive the event.

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0

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