public interface TreeExpansionListener extends EventListener
| Modifier and Type | Method and Description | 
|---|---|
| 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. | 
void treeExpanded(TreeExpansionEvent event)
void treeCollapsed(TreeExpansionEvent event)
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