我是Angular2的新手,我目前正在努力在ngFor循环中导入组件。
当您在ngFor循环中导入包含数据的组件时,它会检查.ts文件中的值,而不是ngFor中使用的局部变量。我想要做的是将ngFor中使用的变量发送到下一个组件。
accommodation.component(父视图)
TS:
import { Component, Input } from '@angular/core';
import { AccommodationModel } from '../../../../models/reservations/accommodation-model';
@Component({
selector: 'reservations-reservation-accommodations',
templateUrl: './accommodations.component.html'
})
export class AccommodationsComponent {
constructor() { }
@Input() accommodations: AccommodationModel[];
}
HTML:
<div class="card-block">
<ngb-tabset>
<ngb-tab *ngFor="let accommodation of accommodations" title="{{accommodation.arrivalDate}}">
<ng-template ngbTabContent>
<div class="table-responsive">
<table class="table table-condensed table-bordered table-striped content-divider-up">
<thead>
<tr>
<th>ArrivalDate</th>
</tr>
</thead>
<tbody>
<tr>
<td>
{{accommodation.arrivalDate}}
</td>
</tr>
</tbody>
</table>
</div>
</ng-template>
</ngb-tab>
</ngb-tabset>
<reservations-reservation-accommodations-costs [costs]="accommodation.costs"></reservations-reservation-accommodations-costs>
</div>
costs.component(子视图)
TS:
import { Component, Input } from '@angular/core';
import { CostModel } from '../../../../../models/reservations/cost-model';
@Component({
selector: 'reservations-reservation-accommodations-costs',
templateUrl: './costs.component.html'
})
export class CostsComponent {
constructor() { }
@Input() costs: CostModel[];
}
HTML:
<div class="row content-divider-up">
<div class="col">
{{costs.length}}
</div>
</div>
如何将ngfor中的 let accommodation(.costs)发送到 costs.component ?使用上面的代码,cost.component中的成本总是未定义的,因为它会查找名为&#34; accommodation&#34;的变量。在accommodation.components.ts文件中,我不想要。
答案 0 :(得分:0)
<reservations-reservation-accommodations-costs [costs]="accommodation.costs"></reservations-reservation-accommodations-costs>
适应是for循环的本地模板引用,并且您正在使用for循环范围之外的引用,您需要将它放在for循环中以便定义容纳< / p>