Having trouble displaying dropdown in Angular 2 with PrimeNG

As I work on my app using PrimeNG and Angular2, I encountered a challenge with a component that is supposed to display a dropdown menu of selectable themes. Despite following the guidelines in the PrimeNG Dropdown documentation closely, I keep receiving an error message stating "No value accessor for ''."

In my theme.component.ts file:

import { Component, OnInit, Input } from '@angular/core'
import { Dropdown, SelectItem} from 'primeng/primeng';

@Component({
   selector: 'my-themes',
   templateUrl: 'dist/html/theme.component.html',
   directives: [Dropdown],
})


export class ThemeComponent {
   selectables: SelectItem[];
   style: string;

   constructor() {
      this.selectables = [];
      this.selectables.push({ label: 'Nightflat', value: 'Nightflat' });
      this.selectables.push({ label: 'Flat', value: 'Flat' });
   }
   ngOnInit() {

   }

}

The content of theme.component.html looks like this:

<p-dropdown [options]="selectables" [(ngModel)]="style"></p-dropdown>

Could you suggest where the issue might lie? Upon closer inspection, it seems that the problem lies with ngModel. Interestingly, the Dropdown appears when I remove it from the html tag.

Answer №1

If you're facing similar issues, take a look at the following resources:

You may be able to avoid your error message by simply changing ngModel to model, but please note that there is a current issue with primeng that is being addressed.

Consider using deprecated forms disable as well.

import { disableDeprecatedForms, provideForms } from '@angular/forms';

bootstrap(AppComponent, [
disableDeprecatedForms(),
provideForms()]);

Update

According to officials of primeng, the problem has been resolved. For more information, check out the link below.

Answer №2

Check out these related problems for more information

https://github.com/primefaces/primeng/issues/549 ngModel: No value accessor for ''

I encountered the exact same error in the console, but simply adding [ngModelOptions]="{standalone: true}" resolved it

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