好的,我有一个问题,很多人似乎都遇到了问题,但是stackoverflow或GitHub上的所有解决方案似乎都没有帮助。
我收到一个错误:
EXCEPTION: Cannot find a differ supporting object 'storeApps' in [apps in AppWidgetsComponent@8:28]
我认为这是由ngFor引起的:
<div class="container app-widgets">
<div class="row">
<div class="col-sm-10 col-sm-offet-1">
<div class="container">
<div class="row">
<ul>
<li *ngFor="#widget of apps"></li>
</ul>
</div>
</div>
</div>
</div>
</div>
相应的组件定义为:
import { Component, Input } from 'angular2/core';
import { NgFor } from 'angular2/common';
import { AppWidgetComponent } from '../appwidget/appwidget.component';
import { StoreApp } from '../../models';
@Component({
selector: 'app-widgets',
template: require('./appwidgets.component.html'),
styles: [require('../../../sass/appwidgets.scss').toString()],
directives: [AppWidgetComponent]
})
export class AppWidgetsComponent {
@Input() apps: Array<StoreApp>;
}
我正在像这样使用
app-widgets
组件:<app-widgets apps=storeApps></app-widgets>
我在相应的组件定义中设置
storeApps
:@Component({
selector: 'home',
template: require('./home.component.html'),
styles: [require('../../../sass/home.scss').toString()],
directives: [AppWidgetsComponent, RecommendedRecentComponent]
})
export class HomeComponent {
private storeApps: Array<StoreApp>;
constructor(private _appsService: AppsService) {
}
recentSelected() {
this._appsService.getRecentApps()
.subscribe(
storeApps => {
this.storeApps = storeApps;
this.storeApps.forEach(element => {
console.log(JSON.stringify(element));
console.log();
})
},
(error: any) => AppComponent.generalError(error.status)
);
}
}
AppService.getRecentApps()
方法如下所示:public getRecentApps() {
return this.http.get(`${appSettings.apiRoot}resources/recent`)
.map(res => <StoreApp[]> res.json().data)
.catch(this.handleError);
}
让我感到困惑的是,为什么它抱怨出现在应用程序组件中的
storeApps
而不是出现在apps
组件中的app-widgets
。有什么想法的人吗?
最佳答案
在您的代码中:
<app-widgets apps=storeApps></app-widgets>
等效于以下表达式(它将属性值设置为字符串
"storeApps"
):<app-widgets [attr.apps]="'storeApps'"></app-widgets>
您应该使用:
<app-widgets [apps]="storeApps"></app-widgets>
关于javascript - 异常(exception):在[AppWidgetsComponent @ 8:28中的应用程序]中找不到其他支持对象“storeApps”,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/35770891/