attribute data binding issues after upgrading 6->10

UI Components for Angular
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devperson
Posts: 2
Joined: 09 Nov 2020, 21:00

14 Nov 2020, 00:52

I'm in the process of upgrading a large angular app from 6.1.9 to 10.2.3 and primeNG 6 to 10.0.3 and I'm having some data binding issues with code that previously worked fine.

I've stripped down my component that uses pDropdown as simple as I could for testing.

In this example, I get my list of dropdown choices listed as 'Empty'.

Code: Select all

<div >
    <p-dropdown
        [options]="options"
        [(ngModel)]="model"
        [optionLabel]="optionLabel"
        >
    </p-dropdown>
</div>

Code: Select all

import { Component, Input } from '@angular/core';

@Component({
  selector: 'fme-dropdown-ajs',
  templateUrl: './fme-dropdown.component.html',
  styleUrls: ['./fme-dropdown.component.scss']
})
export class FmeDropdownComponent {

  @Input() options: {caption: string, value: string, display: string}[];
  @Input() model: {caption: string, value: string, display: string};
  optionLabel = 'display';

  constructor() { }

}


This example used to work fine before upgrading from angular/primeng 6 to 10.
This example also works fine if I use template interpolation.

Code: Select all

optionLabel="{{optionLabel}}"


I tried reproducing this in a stackblitz since I saw nothing wrong with using data-binding, but could not reproduce the issue.
https://stackblitz.com/edit/primeng-attribute-binding

After more investigation it appears to only happen with Ivy enabled and sounds very similar to this issue
https://github.com/primefaces/primeng/issues/8643

Anyone have any ideas what's going on or can point me in the correct direction?

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