在div中动态加载组件 - Angular5

Question

I was able to successfully create a button that on click loads another instance of my component into the DOM, but it loads it outside the component I want it to be inside which results with the CSS being off. When I add "editorComponents" to my page it currently looks like this:

But I want it to look like this:

You can see from the inspection that in the second example all of the tags are manually moved to where I want them to be.

Right now my code is as follows:

home.component.html

 <div class="row backgroundContainer"> <div class="col-md-7 componentContainer"> <app-editor></app-editor> <button (click)="addEditor()" type="button">Add Editor</button> </div> <div class="col-md-5 componentContainer"> <app-bible></app-bible> </div> <div id="footerBox"> <app-footer></app-footer> </div> </div> 

home.component.ts

 import { Component, OnInit, ViewContainerRef, ComponentFactoryResolver } from '@angular/core'; import { EditorComponent } from '../editor/editor.component'; @Component({ selector: 'app-home', templateUrl: './home.component.html', styleUrls: ['./home.component.scss'] }) export class HomeComponent implements OnInit { constructor(private componentFactoryResolver: ComponentFactoryResolver, private viewContainerRef: ViewContainerRef) {} ngOnInit() { } addEditor() { const factory = this.componentFactoryResolver.resolveComponentFactory(EditorComponent); const ref = this.viewContainerRef.createComponent(factory); ref.changeDetectorRef.detectChanges(); } } 

So how do I make it so when I dynamically add an EditorComponent to my page it is added directly below the current "app-editor" in my html?

Answer 1

You need to use your own ViewContainerRef . Currently you injecting root one and as you can see all your components appended to <app-root> .

import { Component, OnInit, ViewContainerRef, ComponentFactoryResolver } from '@angular/core';
import { EditorComponent } from '../editor/editor.component';

@Component({
  selector: 'app-home',
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.scss']
})
export class HomeComponent implements OnInit {
  // Setup custom viewChild here
  @ViewChild('container', { read: ViewContainerRef }) viewContainerRef: ViewContainerRef;    

  constructor(private componentFactoryResolver: ComponentFactoryResolver) {}

  ngOnInit() {
  }

  addEditor() {
    const factory = this.componentFactoryResolver.resolveComponentFactory(EditorComponent);
    const ref = this.viewContainerRef.createComponent(factory);
    ref.changeDetectorRef.detectChanges();
  }

}

Now inside your home.component.html put this where you want your editors to be instantiated

<div #container></div>

You can use any html tag here.

Now all your editors will be inside this block.