我在我的服务中编写了以下函数:
public refresh(area: string) {
this.eventEmitter.emit({ area });
}area访问所有我的孩子,并应该通过单击在父级中更新它们。
//在Childs
this.myService.eventEmitter.subscribe((data) => {
if (!this.isLoading && data.area === 'childFirst') {
this.loadData();
}
});this.myService.eventEmitter.subscribe((data) => {
if (!this.isLoading && data.area === 'childSecond') {
this.loadData();
}
});this.myService.eventEmitter.subscribe((data) => {
if (!this.isLoading && data.area === 'childThird') {
this.loadData();
}
});//我的父组件
// TS
showChildFirst() {
this.navService.sendNavEventUpdate('childFirst');
}
showChildSecond() {
this.navService.sendNavEventUpdate('childSecond');
}
showChildThird() {
this.navService.sendNavEventUpdate('childThird');
}
public refresh(area: string) {
this.myService.refresh(area);
}// HTML
<!-- Refresh your childs -->
<button type="button" (click)="refresh()">Refresh</button>如果我将以下代码插入到函数中:refresh('childFirst'),则更新第一个子组件。有没有办法在刷新中刷新所有eventTypes?
发布于 2021-05-18 21:05:41
您可以更改“刷新”方法以获取字符串数组,而不是单个字符串。所以这个方法就变成了
public refresh(areas: string[]) {
areas.forEach(area =>
this.myService.refresh(area);
)
}它的名称将是
<button type="button" (click)="refresh(['childFirst','childSecond','childThird'])">Refresh</button>https://stackoverflow.com/questions/67586275
复制相似问题