Welcome toVigges Developer Community-Open, Learning,Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
850 views
in Technique[技术] by (71.8m points)

angular - Create multiple component dynamically with create method and rootSelectorOrNode parameter

I need to use the ComponentFactory.create() method with the 3rd parameter provided (rootSelectorOrNode) which represents a g node of a SVG template.

So I used a directive like that :

@ViewChild('objHost', {read: ViewContainerRef}) objHost: ViewContainerRef;

...

ngAfterViewInit(): void {
   this.add( ... my component with data );
   this.add( ... Second new instance my component with other data);
}

...

  public add(myComp: MyComponent): void {
      const componentFactory: ComponentFactory<any> = this.componentFactoryResolver.resolveComponentFactory(myComp.component);
      const componentRef = componentFactory.create(this.injector, [], this.objHost.nativeElement);
      this.objHost.insert(componentRef.hostView);
  }

with in view:

<g #objHost></g>

The problem is, in the final DOM, only the last component is added. The first one is replaced or erased. Why can I not add several component with this method ?


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)
等待大神答复

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to Vigges Developer Community for programmer and developer-Open, Learning and Share
...