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[英]How to bind event from child to parent component in Angular 2+ in ngSwitch
[英]How to bind parent component using child component's event property using `lazy loading` in Angular 9
我正在使用 Angular 9 中的ivy compiler
將一些組件轉換為lazily loaded
。
這是我目前的代碼:
<bulk-user-upload [visible]="bulkUserUploadVisible (fileUploaded)="onBulkUserUploadFileUploaded($event)">
我試圖修改代碼變成這樣:
<ng-container #bulkUserUpload></ng-container>
我想訪問子組件中存在的fileUploaded
函數,以便我可以監聽父組件上的事件。
const { BulkUserUploadComponent } = await import('../bulk-user-upload/bulk-user-upload.component');
const bulkUserUploadFactory = this.cfr.resolveComponentFactory(BulkUserUploadComponent);
const { instance } = this.bulkUserUploadContainer.createComponent(bulkUserUploadFactory, null, this.injector);
instance.visible = true;
如何修改上面的代碼以便我可以訪問子函數?
所以我將它添加到我的父組件中
instance.fileUploaded.pipe(
takeUntil(instance.destroy$)
).subscribe(resp => this.onBulkUserUploadFileUploaded(resp));
這給孩子destroy$ = new Subject();
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