角度5嵌套ngfor

时间:2018-06-08 05:31:57

标签: angular angular5

我试图通过点击按钮添加多个表单字段。为了实现这一点,我使用了一个数组,因此只需单击一个按钮就可以推送数组元素,并根据数组中的项目生成表单。在那个表单中,我有一个select字段,由另一个数组填充。字段生成正常,但选择不填充。

app.component.ts

import { Component } from "@angular/core";
import { test } from './test';

  @Component({
  selector: "app-root",
  templateUrl: './app.component.html'
})
export class AppComponent {
  mytest: test[] = [];
  fields: string[] = ['First Name','Last Name','Email Address','Address1 ','Address2 ','City','Postal Code','Province']

  add() {
    this.mytest.push({name: 't',type: 't',placeholder:'t',values:'t'});
    console.log(this.mytest);
  }
}

app.component.html

<form #formRef="ngForm">
  <div *ngFor="let word2 of mytest; let in=index" class="col-sm-3">
      <div class="form-group">
        <select id="fe[in]">
          <option *ngFor="let f of fields">{{f}}</option>
        </select>
        <input type="text" [(ngModel)]="word2[in].name" name="name{{in}}" class="form-control" #name="ngModel" required />

      </div>
      <br />
  </div>
  <button [disabled]="!formRef.form.valid" (click)="add()">Add input</button>
</form>

test.ts

export interface test{
    name: string;
    type: string;
    placeholder: string;
    values: string;
}

0 个答案:

没有答案
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