TreeView::TreeNodeCheckChanged Event

.NET Framework (current version)
 

Occurs when a check box in the TreeView control changes state between posts to the server.

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

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public:
event TreeNodeEventHandler^ TreeNodeCheckChanged {
	void add(TreeNodeEventHandler^ value);
	void remove(TreeNodeEventHandler^ value);
}

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.

Even though the TreeNodeCheckChanged event is fired on post back, changing a check box does not cause a post back.

For more information about handling events, see NIB: Consuming Events.

The following code example demonstrates how to use the TreeNodeCheckChanged event to update a Label control when the check boxes of the TreeView control change state between posts to the server.

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No code example is currently available or this language may not be supported.

.NET Framework
Available since 2.0
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