指定索引处的动态组件未正确放置

Question

我试图在Angular中显示一个简单的项目列表,侧面有一个可点击的div; 在用户选择时,组件应在单击的组件下方动态创建新组件.

为此目的,我使用ComponentFactoryResolver没有相关问题; 但是,使用ViewContainerRefas parent,我无法找到如何将创建的组件放在指定的索引处,即使我将其指定为createComponent()方法中的参数也是如此.

app.component.html

<h3>Click on the arrow to create a component below the item clicked.</h3>

<div #myContainer>
  <div *ngFor="let thing of things; let index = index">
    <div class="inline click" (click)="thingSelected(thing, index)"> > </div>
    <div class="inline">{{thing.id}}</div>
    <div class="inline">{{thing.name}}</div>
    <div class="inline">{{thing.value}}</div>
  </div>
</div>

app.component.ts

export class AppComponent  {  
  @ViewChild('myContainer', { read: ViewContainerRef }) container: ViewContainerRef;

  things = [];
  constructor(private componentFactoryResolver: ComponentFactoryResolver){
    for(let i=0; i < 10; i++)
      this.things.push({id: i, name: "thing" + i, value: 5 * i});    
  }

  thingSelected(thing: any, index: number){
    let component = this.container.createComponent(this.componentFactoryResolver.resolveComponentFactory(DetailComponent), index);
    component.instance.id = thing.id;    
  }
}

我还创建了一个stackblitz示例来说明问题:我缺少什么或做错了什么？

澄清:

1. 我想在PrimeNg库的TurboTable中重现类似于"RowExpand"功能的东西.用户单击一行,并在单击的位置创建动态组件.
2. 我不知道运行时组件的类型:这就是我想要动态组件创建的原因(所以,在html模板中指定它不是我需要的)

Answer 1

好的，这是工作示例@ViewChildren

https://stackblitz.com/edit/angular-gxmj4s?file=src%2Fapp%2Fapp.component.ts

  @ViewChildren('details', { read: ViewContainerRef }) containers: QueryList<ViewContainerRef>;

  thingSelected(thing: any, index: number) {
    const containersArray = this.containers.toArray();
    let component = containersArray[index].createComponent(this.componentFactoryResolver.resolveComponentFactory(DetailComponent));
    component.instance.id = thing.id;
  }

和

<div #myContainer>
  <div *ngFor="let thing of things; let index = index">
    <div class="inline click" (click)="thingSelected(thing, index)"> > </div>
    <div class="inline">{{thing.id}}</div>
    <div class="inline">{{thing.name}}</div>
    <div class="inline">{{thing.value}}</div>
    <div #details></div>
  </div>
</div>

结果是