class in UnityEngine.UIElements
/
Implemented in:UnityEngine.UIElementsModule
A data structure for the tree view item expansion event.
| id | The id of the item being expanded or collapsed. Returns -1 when expandAll() or collapseAll() is being called. |
| isAppliedToAllChildren | Indicates whether the expandAllChildren or collapsedAllChildren is applied when expanding the item. |
| isExpanded | Indicates whether the item is expanded (true) or collapsed (false). |