我不得不stopPropagation和preventDefault，以防止按钮展开上面的手风琴项。

所以…

@Component({
  template: `
    <button (click)="doSomething($event); false">Test</button>
  `
})
export class MyComponent {
  doSomething(e) {
    e.stopPropagation();
    // do other stuff...
  }
}

我刚刚检查了一个Angular 6应用程序，event. stoppropagation()在一个事件处理程序上工作，甚至不需要传递$event

(click)="doSomething()"  // does not require to pass $event


doSomething(){
   // write any code here

   event.stopPropagation();
}

我不得不stopPropagation和preventDefault，以防止按钮展开上面的手风琴项。

所以…

@Component({
  template: `
    <button (click)="doSomething($event); false">Test</button>
  `
})
export class MyComponent {
  doSomething(e) {
    e.stopPropagation();
    // do other stuff...
  }
}

如果您希望能够将此添加到任何元素，而不必一遍又一遍地复制/粘贴相同的代码，您可以制作一个指令来完成此操作。如下图所示:

import {Directive, HostListener} from "@angular/core";
    
@Directive({
    selector: "[click-stop-propagation]"
})
export class ClickStopPropagation
{
    @HostListener("click", ["$event"])
    public onClick(event: any): void
    {
        event.stopPropagation();
    }
}

然后将它添加到你想要它的元素:

<div click-stop-propagation>Stop Propagation</div>

提供的大多数解决方案都适用于Angular 11以上的版本，对于Angular 11或以下版本，我找到了一个可以使用的变通方案:

export class UiButtonComponent implements OnInit, OnDestroy {

  @Input() disabled = false;

  clickEmitter: Subject<any> = new Subject();

  constructor(private elementRef: ElementRef) { }

  ngOnInit(): void {
    this.elementRef.nativeElement.eventListeners()
      .map(listener => this.clickEmitter.pipe(filter(event => Boolean(event))).subscribe(event => listener(event)));
    this.elementRef.nativeElement.removeAllListeners();
    this.elementRef.nativeElement.addEventListener('click', (event) => {
      if (!this.disabled) {
        this.clickEmitter.next(event);
      }
    });
  }

  ngOnDestroy(): void {
    this.clickEmitter.complete();
  }
}

我基本上把当前组件的每个侦听器都放在Observable上，然后，我只注册一个侦听器，并在那里管理操作。

上面的例子是在给定一个布尔变量的情况下禁用按钮上的click事件。

试试这个指令

@Directive({
    selector: '[stopPropagation]'
})
export class StopPropagationDirective implements OnInit, OnDestroy {
    @Input()
    private stopPropagation: string | string[];

    get element(): HTMLElement {
        return this.elementRef.nativeElement;
    }

    get events(): string[] {
        if (typeof this.stopPropagation === 'string') {
            return [this.stopPropagation];
        }
        return this.stopPropagation;
    }

    constructor(
        private elementRef: ElementRef
    ) { }

    onEvent = (event: Event) => {
        event.stopPropagation();
    }

    ngOnInit() {
        for (const event of this.events) {
            this.element.addEventListener(event, this.onEvent);
        }
    }

    ngOnDestroy() {
        for (const event of this.events) {
            this.element.removeEventListener(event, this.onEvent);
        }
    }
}

使用

<input 
    type="text" 
    stopPropagation="input" />

<input 
    type="text" 
    [stopPropagation]="['input', 'click']" />