API Reference > ui-components > PropertyGrid > PropertyGridEventHandler PropertyGridEventHandler Class Beta Handles events and changes on PropertyGridModel data. Methods Name Description constructor(_modelSource: IPropertyGridModelSource): PropertyGridEventHandler onExpansionToggled(selectionKey: string): void Flips isExpand on item by given selectionKey Defined in ui/components/src/ui-components/propertygrid/internal/PropertyGridEventHandler.ts Line 23 Last Updated: 11 June, 2024