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Question

我正在使用 Angular Formio 进行动态屏幕创建，作为其中的一部分，当我从数据库获取屏幕脚本时，如果我更改特定元素的标签，我就可以ngOnInit()更改。但是一旦显示屏幕，如果我更改标签，它就不会生效。html<Formio [form]="form" [submission]="submission" (submit)="onSubmit($event)"></formio><div class="mb-5">    <div class="row">      <div class="col-12 mb-5">        <div class="pull-right" style="float:right;">          <button class="btn save-button" (click)="clearData()">Clear data</button>          <button class="btn save-button" (click)="showData()">Show data</button>        </div>      </div>    </div>  </div>成分ngOnInit() {    debugger;    this.triggerRefresh = new EventEmitter();    this.http.get('http://localhost:3000/angcomp/3')    .subscribe(      response  => {        debugger;        this.data = response.json();        this.form = this.data;        this.form.components[0].label = 'Changed';//it is updating the lable in view      },        err => {console.error(err)}    ); }showData() {    this.form.components[0].label = 'Again Changed'; // here it is not changing but in this.form.components[0].label value is displaying as 'Again Changed', but not effecting in front end}

Answer 1

尝试 formio 中的刷新属性

在 HTML 中：

<Formio [refresh]="triggerRefresh" [form]="form" [submission]="submission" (submit)="onSubmit($event)"></formio>

在您的组件中：

showData() {

    this.form.components[0].label = 'Again Changed';

    this.triggerRefresh.emit({

    form: this.form

});

}

https://github.com/formio/angular-formio/wiki/Form-Renderer#updating-forms-and-submissions