Javascript 在ngFor中绑定多个值是否正确？

试图理解如何绑定

ngFor

中的输入值在下面的代码中，两个都在打印相同的值，试图为每个输入设置不同的值，这是我犯的错误吗

app.comp.html

 <div *ngFor="let ques of sub.question">
   <label for="subQuestionsInput">{{ques.questionText}}</label>
   <input type="subQuestionsInput" class="form-control" *ngIf= "ques.answerType === 'TEXT_NUMBER'" name="TEXT_NUMBER" placeholder="Enter Dose amount Left" [(ngModel)]="TEXT_NUMBER"> 
   <input type="subQuestionsInput" class="form-control" *ngIf= "ques.answerType === 'TEXT_DATE'" name="TEXT_DATE" placeholder="Enter Next Dose Date" [(ngModel)]="TEXT_DATE"> 
</div>

---

反应式表单？@LeandroHernándezMira我们正在使用Bootstrapha您检查过反应式表单吗？我认为缺少了什么，您在哪里定义了

sub.question

？。我确信打印相同值的原因是您的

sub.question

import {
    Component,
    OnInit
} from '@angular/core';
import {
    ApiService
} from './api.service';
import {
    EventService
} from './format-questions/format-questions.service'
@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent Implement OnInit {
      TEXT_NUMBER: string;
      TEXT_DATE: string;
    constructor(private dataService: ApiService, private eventService: EventService) {}
    ngOnInit() {
        console.log(TEXT_NUMBER);
      console.log(TEXT_DATE);
    }
}