Element SAP SE Base Class for Elements. The unique identifier within a page, either configured or automatically generated. The tooltip that should be shown for this Element. Can either be an instance of a TooltipBase subclass or a simple string. Custom Data, a data structure like a map containing arbitrary key value pairs. Defines the layout constraints for this control when it is used inside a Layout. LayoutData classes are typed classes and must match the embedding Layout. See VariantLayoutData for aggregating multiple alternative LayoutData instances to a single Element. Dependents are not rendered, but their databinding context and lifecycle are bound to the aggregating Element. Defines the drag-and-drop configuration. <b>Note:</b> This configuration might be ignored due to control {@link sap.ui.core.Element.extend metadata} restrictions.