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[英]Pass API returning array data from Parent component to Child Component in Angular
[英]How to pass API returning data array values from Parent Component to Child Component in Angular
在这里我想传递this.bookingInfo = bookings.responseObj.txnValues;
的值 this.bookingInfo
数组值从父组件到我的子组件中的 bookingInfo 数组。我想将这些数据放入chartNameChartTTV.data = [];
子组件中的数组。 在这里divName
将访问 html 文件am4core.create('divName', am4charts.XYChart);
不是 bookingInfo 数组。
这是我的父组件。
@Component({
selector: 'app-dashboard',
templateUrl: './dashboard.component.html',
styleUrls: ['./dashboard.component.scss']
})
export class DashboardComponent implements OnInit{
bookingInfo = [];
ngOnInit() {
this.getBookingInfo();
}
getBookingInfo() {
const params = [];
params.push({code: 'dateType', name: 'BOOKING'});
params.push({code: 'fromDate', name: '2019-01-01'});
params.push({code: 'toDate', name: '2019-12-31'});
this.ServiceHandler.getTxnInfo([], params).subscribe(
bookings => {
this.bookingInfo = bookings.responseObj.txnValues;
console.log(this.bookingInfo);
});
}
}
这是我的子组件。
@Component({
selector: 'app-summary-chips',
templateUrl: './summary-chips.component.html',
styleUrls: ['./summary-chips.component.scss']
})
export class SummaryChipsComponent implements OnInit {
@Input() bookingInfo: [];
ngOnInit() {
console.log(this.bookingInfo);
}
createSummaryChips( divName: string, chartDataInfo: [], chartValue: any, chartDate: any) {
am4core.useTheme(am4themesAnimated);
const chartNameChartTTV = am4core.create('divName', am4charts.XYChart);
chartNameChartTTV.width = am4core.percent(100);
chartNameChartTTV.height = am4core.percent(100);
chartNameChartTTV.padding(0, 0, 0, 0);
chartNameChartTTV.data = [];
}
}
这是我的服务 class。
@Injectable({
providedIn: 'root'
})
export class ServiceHandler {
getTxnInfo(headers: any[], params: any[]) {
return this.apiService.get( 'analytics-api/dashboard/txn-info', headers, params);
}
}
但是当我尝试console.log(this.bookingInfo);
在子组件中,它显示类似未定义的错误 这是我的dashboard.component.html 文件
<div class="l-content-wrapper c-summary-chip oh" >
<div class="c-summary-chip__txt">Cancellations</div>
<div id="divName" class="c-summary-chip__graph ">
</div>
</div>
但我希望它把这个代码块放入 summary-chips.component.html 并放入
像这样的dashboard.component.html文件
<div class="l-content-wrapper c-summary-chip oh" style="visibility: hidden">
<app-summary-chips></app-summary-chips>
</div>
您只是缺少将您的 bookingInfo 从仪表板输入到 app-summary-chips 输入
在仪表板组件的 html 中:
<div class="l-content-wrapper c-summary-chip oh" style="visibility: hidden">
<app-summary-chips [bookingInfo]='bookingInfo'></app-summary-chips>
</div>
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