javax.swing.event
Interface TreeWillExpandListener

All Superinterfaces:

EventListener

public interface TreeWillExpandListener

extends EventListener

Unsafe: The listener that's notified when a tree expands or collapses a node. For further information and examples see How to Write a Tree-Will-Expand Listener, a section in The Java Tutorial.

Version:

1.7 12/03/01

Author:

Scott Violet

Method Summary

void	treeWillCollapse(TreeExpansionEvent event) Enabled: Invoked whenever a node in the tree is about to be collapsed.
void	treeWillExpand(TreeExpansionEvent event) Enabled: Invoked whenever a node in the tree is about to be expanded.

Method Detail

treeWillExpand

public void treeWillExpand(TreeExpansionEvent event)
                    throws javax.swing.tree.ExpandVetoException

Enabled: Invoked whenever a node in the tree is about to be expanded.

javax.swing.tree.ExpandVetoException

treeWillCollapse

public void treeWillCollapse(TreeExpansionEvent event)
                      throws javax.swing.tree.ExpandVetoException

Enabled: Invoked whenever a node in the tree is about to be collapsed.

javax.swing.tree.ExpandVetoException