viewchild angular syntax
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import {AfterViewInit, Component, Directive, ViewChild} from '@angular/core';
@Directive({selector: 'child-directive'})
class ChildDirective {
}
@Component({selector: 'someCmp', templateUrl: 'someCmp.html'})
class SomeCmp implements AfterViewInit {
@ViewChild(ChildDirective) child!: ChildDirective;
ngAfterViewInit() {
// child is set
}
}view child in angular
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import {Component, Directive, Input, ViewChild} from '@angular/core';
@Directive({selector: 'pane'})
export class Pane {
@Input() id!: string;
}
@Component({
selector: 'example-app',
template: `
<pane id="1" *ngIf="shouldShow"></pane>
<pane id="2" *ngIf="!shouldShow"></pane>
<button (click)="toggle()">Toggle</button>
<div>Selected: {{selectedPane}}</div>
`,
})
export class ViewChildComp {
@ViewChild(Pane)
set pane(v: Pane) {
setTimeout(() => {
this.selectedPane = v.id;
}, 0);
}
selectedPane: string = '';
shouldShow = true;
toggle() {
this.shouldShow = !this.shouldShow;
}
}Copyright © 2021 Codeinu
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