TreeView::OnSelectedNodeChanged Method (EventArgs^)
Raises the SelectedNodeChanged event of the TreeView control.
Assembly: System.Web (in System.Web.dll)
Parameters
- e
-
Type:
System::EventArgs^
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.
Note |
|---|
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 NIB: 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.
Available since 2.0
