项目中某个页面需要在两个组件tree,list之间通过eventEmit通信,点击tree,list查询数据。同时List界面中某个变量在页面中进行了双向绑定,最终发现点击tree后,双向绑定的数据无法更新,但通过console.log打印变量却又发现变量更新了。 问题解决: 订阅消息、回调函数等,有可能跳出了Angular的zone,所以需要注入ChangeDetector,显...
@Output('selectedColor') colorOut =newEventEmitter(); choose(color){this.colorOut.emit(color); } If we don't give name 'selectorColor', it will used 'colorOut' as name. Inapp.ts, it is used: <color-picker #picker [color]="picker.color" (selectedColor)="picker.color = $event">...
this.sub = this.fg.valueChanges.subscribe(value => { console.log('valueChange', value) this.filterChange.emit(value); })}; ngOnDestroy() { this.sub.unsubscribe(); } } angular-reactive-form-emit-event-false.stackblitz.io Console Clear on reload...
@Output('selectedColor') colorOut =newEventEmitter(); choose(color){this.colorOut.emit(color); } 1. 2. 3. 4. 5. If we don't give name 'selectorColor', it will used 'colorOut' as name. Inapp.ts, it is used: <color-picker #picker [color]="picker.color" (selectedColor)="pic...
Syntax: EventEmitter.emit(payload) We can create custom events using EventEmitter and expose their properties. We can fire an event by calling the EventEmitter.emit(payload) passing payload which can contain any value. The parent, or the component to which we are passing the value, will listen...
Reproduction link https://stackblitz.com/edit/angular-yqmg18 Steps to reproduce Create a component and put it inside a ng-template. Add a button to trigger the modal within the template. Emit an @Output event in the nzOnOk method from th...
angularjs unit-testing jasmine Your issue is that there is nostopPropagationmethod on the$broadcastedevent. broadcast propagates down and stopPropagation (available in$emit) is used to prevent further propagation upwards. So you have 2 options. ...
{constructor(privateelementRef:ElementRef){}@Output()clickOutside:EventEmitter<any>=newEventEmitter();@HostListener('document: click',['$event.target'])onMouseEnter(targetElement:any){constclickInside=this.elementRef.nativeElement.contains(targetElement);if(!clickInside){this.clickOutside.emit(null);}...
target as HTMLTextAreaElement; this.countUpdate.emit(target.value./*...*/) 这会让 TypeScript 知道元素是 textarea 并且它会知道 value 属性。 任何类型的 HTML 元素都可以这样做,只要您向 TypeScript 提供有关其类型的更多信息,它就会以适当的提示和当然更少的错误来回报您。 为了使将来更容易,您可能...
你有一个错字，它引用的是源函数而不是事件发射器！之前：