我是Angular 2的新手。在學習Angular 2之後,我做了一個使用父子組件的演示程序。父組件的視圖具有表單元素並且少量輸入和子組件的視圖具有其他輸入。 這是我的父組件重置角度2父組件和子組件上的所有輸入
<form #f="ngForm" (ngSubmit)="onSubmit(f)"><div class="field clearfix w50" >
<label>Destination <span class="note">*</span></label>
<div [class.has-error]="is_draft_validated && !destination.value">
<input type="text" name="destination" [(ngModel)]="TRequest.destination" #destination="ngModel" class="form-control">
<span *ngIf="is_draft_validated && !destination.value" class="error">{{ 'VALIDATE.required' | translate }}</span>
</div>
</div><payment-dietary *ngIf="TRequest.m_menu_request_id==9" [clear]="is_clear" [dietary]="TRequestDietary"></payment-dietary><button class="btn btn-style btn-style-special btn-chart" type="submit">
<i class="fa fa-bar-chart"></i> Save
</button>
<button class="btn btn-style btn-clear" (click)="onClear(f)">
<i class="fa fa-eraser"></i> Reset
</button></form>
的觀點和我的孩子組成
<div class="field clearfix w100">
<label>Participant Name <span class="note">*</span></label>
<div>
<input type="text" name="participant_name" class="form-control" [(ngModel)]="Item.participant_name" #participant_name="ngModel" [class.ng-invalid]="participant_name?.dirty && !participant_name.value">
<span *ngIf="participant_name?.dirty && !participant_name.value" class="error">{{ 'VALIDATE.required' | translate }}</span>
</div>
</div>
<div class="field clearfix w50">
<label>Participant Number <span class="note">*</span></label>
<div>
<input type="text" name="participant_num" class="form-control numeric" [(ngModel)]="Item.participant_num" (keyup)="Item.participant_num = $event.target.value" #participant_num="ngModel" [class.ng-invalid]="(participant_num?.dirty || participant_num?.touched) && !participant_num.value && !clear" id="form_participant_num">
<span *ngIf="(participant_num?.dirty || participant_num?.touched) && !participant_num.value" class="error">{{ 'VALIDATE.required' | translate }}</span>
</div>
</div>
和子組件代碼的觀點
import { Component, Input, AfterViewInit } from '@angular/core';
import { TRequestDietary } from '../../../../models';
@Component({
selector: 'payment-dietary',
templateUrl: './payment-dietary-form.component.html',
})
export class PaymentDietaryFormComponent{
@Input('dietary') Item: TRequestDietary;
@Input() clear: boolean;
}
當我按下按鈕復位形式,我只能在父視圖上重置輸入,但不能在子組件的視圖上重置輸入。這是代碼復位形式
onClear(form: NgForm){
form.reset();
}
我不知道如何重置子組件上的輸入。請幫我
你能給一些解釋嗎? – xameeramir
希望它很清楚..不知道你的查詢是什麼 –