Metadata provider (multi-provider). Falls back to the global default when null.
The selected prompt's ID (two-way bindable).
True when the given prompt is the selected one (UUID-safe across SQL Server / PostgreSQL).
A callback method that is invoked immediately after the default change detector has checked the directive's data-bound properties for the first time, and before any of the view or content children have been checked. It is invoked only once when the directive is instantiated.
Close when clicking outside the component.
Placeholder shown when nothing is selected.