ComponentRef

Represents a component created by a ComponentFactory. Provides access to the component instance and related objects, and provides the means of destroying the instance.

abstract class ComponentRef<C> {
  abstract location: ElementRef
  abstract injector: Injector
  abstract instance: C
  abstract hostView: ViewRef
  abstract changeDetectorRef: ChangeDetectorRef
  abstract componentType: Type<any>
  abstract destroy(): void
  abstract onDestroy(callback: Function): void
}

Properties

Property	Description
abstract location: ElementRef	Read-only. The host or anchor element for this component instance.
abstract injector: Injector	Read-only. The dependency injector for this component instance.
abstract instance: C	Read-only. This component instance.
abstract hostView: ViewRef	Read-only. The host view defined by the template for this component instance.
abstract changeDetectorRef: ChangeDetectorRef	Read-only. The change detector for this component instance.
abstract componentType: Type<any>	Read-only. The component type.

Methods

destroy()
Destroys the component instance and all of the data structures associated with it.
abstract destroy(): void Parameters There are no parameters. Returns void

onDestroy()
A lifecycle hook that provides additional developer-defined cleanup functionality for the component.
abstract onDestroy(callback: Function): void Parameters callback Function A handler function that cleans up developer-defined data associated with this component. Called when the destroy() method is invoked. Returns void