ComponentRef

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

描述

Represents an instance of a Component created via a ComponentFactory.
表示通过ComponentFactory创建的组件的实例。

ComponentRef provides access to the Component Instance as well other objects related to this Component Instance and allows you to destroy the Component Instance via the destroy method.

方法

• get location(): ElementRef

Location of the Host Element of this Component Instance.
该组件实例的Host元素的位置。

• get injector(): Injector

The injector on which the component instance exists.
组件实例所在的注入器

• get instance(): C

The instance of the Component.
组件实例

• get hostView(): ViewRef

The ViewRef of the Host View of this Component instance.
该组件实例的Host视图的ViewRef

• get changeDetectorRef(): ChangeDetectorRef

The ChangeDetectorRef of the Component instance.
组件实例的ChangeDetectorRef。

• get componentType(): Type

The component type.
组件类型

• destroy(): void

Destroys the component instance and all of the data structures associated with it.
销毁组件实例和与之关联的所有数据结构。

• onDestroy(callback: Function): void

Allows to register a callback that will be called when the component is destroyed.
允许注册在组件销毁时将被调用的回调。