Angular - 输入文件字段中的验证器

Question

In angular, how can I make a obrigatory field validator for a field that will be inserted a file in? Validator.required is not working in this case.

Html:

<input class="input" type="text" formControlName="document" value="{{arquivosSelecionados[0] ? arquivosSelecionados[0][0].name : ''}}" disabled>
                
<app-form-messages class="md-inputfield"  [field]="formIncluirMembros.get('document')"></app-form-messages>

Typescript

this.formIncluirMembros.addControl("document", new FormControl(null, Validators.required));

Answer 1

Remove disabled in input rather use readonly if suit your requirement. As adding it will exempt from validation checks as per documentation .