Calling angular function from dynamically added hyperlink

问题

I'm adding some html dynamically to my page. I have add this

<a [routerLink]="[]" class="image-fav" (click)="imageDel()">CLICK-ME</a>

Click on this hyperlink should call the imageDel function but it does not do so.

If I add this html to component template straight everything works fine. How can I fix this problem ?

回答1:

Angular doesn't understand the events of dynamically added elements. One workaround would be to use ElementRef's querySelector function to add the event handler. Try the following

import { AfterViewInit, Component, ElementRef } from '@angular/core';

constructor(private elementRef: ElementRef) { }

ngAfterViewInit() {
  this.elementRef.nativeElement.querySelector('.image-fav').addEventListener(
    'click', this.imageDel.bind(this)
  );
}

Alternatively, you could also use Renderer2's listen method or HostListener to bind the event handler.

来源：https://stackoverflow.com/questions/62108704/calling-angular-function-from-dynamically-added-hyperlink