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NgComponentOutlet

directive

Instantiates a single Component type and inserts its Host View into current View. NgComponentOutlet provides a declarative approach for dynamic component creation.

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NgModule

Selectors

Properties

Property Description
@Input()ngComponentOutlet: Type<any>
@Input()ngComponentOutletInjector: Injector
@Input()ngComponentOutletContent: any[][]
@Input()ngComponentOutletNgModuleFactory: NgModuleFactory<any>

Description

NgComponentOutlet requires a component type, if a falsy value is set the view will clear and any existing component will get destroyed.

Fine tune control

You can control the component creation process by using the following optional attributes:

  • ngComponentOutletInjector: Optional custom Injector that will be used as parent for the Component. Defaults to the injector of the current view container.

  • ngComponentOutletContent: Optional list of projectable nodes to insert into the content section of the component, if exists.

  • ngComponentOutletNgModuleFactory: Optional module factory to allow dynamically loading other module, then load a component from that module.

Syntax

Simple

<ng-container *ngComponentOutlet="componentTypeExpression"></ng-container>

Customized injector/content

<ng-container *ngComponentOutlet="componentTypeExpression;
                                  injector: injectorExpression;
                                  content: contentNodesExpression;">
</ng-container>

Customized ngModuleFactory

<ng-container *ngComponentOutlet="componentTypeExpression;
                                  ngModuleFactory: moduleFactory;">
</ng-container>

A simple example

@Component({selector: 'hello-world', template: 'Hello World!'})
export class HelloWorld {
}

@Component({
  selector: 'ng-component-outlet-simple-example',
  template: `<ng-container *ngComponentOutlet="HelloWorld"></ng-container>`
})
export class NgComponentOutletSimpleExample {
  // This field is necessary to expose HelloWorld to the template.
  HelloWorld = HelloWorld;
}

A more complete example with additional options:

@Injectable()
export class Greeter {
  suffix = '!';
}

@Component({
  selector: 'complete-component',
  template: `Complete: <ng-content></ng-content> <ng-content></ng-content>{{ greeter.suffix }}`
})
export class CompleteComponent {
  constructor(public greeter: Greeter) {}
}

@Component({
  selector: 'ng-component-outlet-complete-example',
  template: `
    <ng-container *ngComponentOutlet="CompleteComponent;
                                      injector: myInjector;
                                      content: myContent"></ng-container>`
})
export class NgComponentOutletCompleteExample {
  // This field is necessary to expose CompleteComponent to the template.
  CompleteComponent = CompleteComponent;
  myInjector: Injector;

  myContent = [[document.createTextNode('Ahoj')], [document.createTextNode('Svet')]];

  constructor(injector: Injector) {
    this.myInjector =
        Injector.create({providers: [{provide: Greeter, deps: []}], parent: injector});
  }
}

Methods

ngOnChanges(changes: SimpleChanges)

Parameters
changes SimpleChanges

ngOnDestroy()

Parameters

There are no parameters.

© 2010–2020 Google, Inc.
Licensed under the Creative Commons Attribution License 4.0.
https://angular.io/api/common/NgComponentOutlet