在另一个组件内创建嵌套组件,其中双向绑定新添加的字段的值在视图中使用JSON管道时,无法在添加值时获取值动态对于新添加的嵌套组件不显示Json表示
这里是plunker链接,如果点击添加另一个地址+链接将添加两个字段街道和邮编,里面会有一个附加键,点击它会增加出生日期及名称字段,如果您键入任何值,它将不会显示在下面的JSON视图中
模板
<div [formGroup]="adressForm">
<div class="form-group col-xs-6">
<label>street</label>
<input type="text" class="form-control" formControlName="street">
<small [hidden]="adressForm.controls.street.valid" class="text-danger">
Street is required
</small>
</div>
<div class="form-group col-xs-6">
<label>postcode</label>
<input type="text" class="form-control" formControlName="postcode">
</div>
<div class="margin-20">
<a (click)="addextraField()" style="cursor: default">
Add +
</a>
</div>
<div formArrayName="extraspaces">
<div *ngFor="let ext of adressForm.controls.extraspaces.controls; let i=index" class="panel panel-default">
<div class="panel-heading">
<span>Address {{i + 1}}</span>
<span class="glyphicon glyphicon-remove pull-right" *ngIf="adressForm.controls.extraspaces.controls.length > 1" (click)="removeAddress(i)"></span>
</div>
<div class="panel-body" [formGroupName]="i">
<extrafield [extragroup]="adressForm.controls.extraspaces.controls[i]"></extrafield>
</div>
</div>
</div>
</div>
组件
import { Component, Input } from '@angular/core';
import { FormGroup } from '@angular/forms';
import { Injectable } from '@angular/core';
@Component({
moduleId: module.id,
selector: 'address',
templateUrl: 'address.component.html',
})
export class AddressComponent {
@Input('group')
public adressForm: FormGroup;
private _fb: FormBuilder
constructor(){}
ngOnInit() {
this.adressForm = this._fb.group({
extraspaces: this._fb.array([])
});
// add address
this.addextraField();
/* subscribe to addresses value changes */
// this.myForm.controls['addresses'].valueChanges.subscribe(x => {
// console.log(x);
// })
}
initextraField() {
return this._fb.group({
dob: ['', Validators.required],
designation: ['', Validators.required]
});
}
addextraField() {
const control = <FormArray>this.adressForm.controls['extraspaces'];
const addrCtrl = this.initextraField();
control.push(addrCtrl);
}
// removeAddress(i: number) {
// const control = <FormArray>this.myForm.controls['addresses'];
// control.removeAt(i);
// }
}
请帮我解决这个问题,对不起,如果这是一个复制一个