dspace-angular/src/app/shared/input-suggestions/validation-suggestions/validation-suggestions.component.html

<form [formGroup]="form" (ngSubmit)="onSubmit(value)"
      [action]="action" (keydown)="onKeydown($event)"
      (keydown.arrowdown)="shiftFocusDown($event)"
      (keydown.arrowup)="shiftFocusUp($event)" (keydown.esc)="close()"
      (dsClickOutside)="checkIfValidInput(form);close();">
  <input [readonly]="disable" #inputField type="text" formControlName="metadataNameField" attr.aria-labelledby="fieldName" [(ngModel)]="value" id="name" [name]="name"
         class="form-control suggestion_input"
         [ngClass]="{'is-invalid': !valid}"
         [dsDebounce]="debounceTime" (onDebounce)="find($event)"
         [placeholder]="placeholder"
         ng-model-options="{standalone: true}"
         autocomplete="off">
  <button class="sr-only" type="submit">
    {{'search.filters.search.submit' | translate}}
  </button>
  <div class="autocomplete dropdown-menu" [ngClass]="{'show': (show | async) && isNotEmpty(suggestions)}">
    <div class="dropdown-list">
      <div *ngFor="let suggestionOption of suggestions">
        <a href="javascript:void(0);" class="d-block dropdown-item"  (click)="onClickSuggestion(suggestionOption.value)" #suggestion>
          <span [innerHTML]="suggestionOption.displayValue"></span>
        </a>
      </div>
    </div>
  </div>
</form>