TreeExpansionListener (Java 2 Platform SE v1.4.2) - Java 2 SDK v1.4.2, Java 2 SDK 英文文档

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Java^TM 2 Platform
Std. Ed. v1.4.2

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javax.swing.event
Interface TreeExpansionListener

All Superinterfaces:: EventListener

All Known Implementing Classes:: BasicTreeUI.TreeExpansionHandler, JTree.AccessibleJTree

public interface TreeExpansionListener
extends EventListener

The listener that's notified when a tree expands or collapses a node. For further documentation and examples see How to Write a Tree Expansion Listener, a section in The Java Tutorial.

Method Summary

void treeCollapsed(TreeExpansionEvent event)
Called whenever an item in the tree has been collapsed.

void treeExpanded(TreeExpansionEvent event)
Called whenever an item in the tree has been expanded.

Method Detail

treeExpanded

public void treeExpanded(TreeExpansionEvent event)

Called whenever an item in the tree has been expanded.

treeCollapsed

public void treeCollapsed(TreeExpansionEvent event)

Called whenever an item in the tree has been collapsed.