TreeView::OnTreeNodeCheckChanged Method (TreeNodeEventArgs^)
Raises the TreeNodeCheckChanged event of the TreeView control.
Assembly: System.Web (in System.Web.dll)
Parameters
- e
-
Type:
System.Web.UI.WebControls::TreeNodeEventArgs^
A TreeNodeEventArgs that contains event data.
The TreeNodeCheckChanged event is raised when a check box in the TreeView control changes state between posts to the server. This allows you to provide an event-handling method that performs a custom routine, such as updating a database or the displayed content, whenever this event occurs.
Raising an event invokes the event handler through a delegate. For more information, see NIB: Consuming Events.
The OnTreeNodeCheckChanged 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 OnTreeNodeCheckChanged in a derived class, be sure to call the OnTreeNodeCheckChanged method for the base class so that registered delegates receive the event.
Available since 2.0