Clear multi-select with a button (angular primeng turbotable)

user_749798 0
Viewed 6124

Is it possible to remotely clear a multi-select (or multiple multi-selects) with a button? I'm using primeng multi-select with turbo table

I've seen this question a few times, but not with a selected answer.

Below is my multi-select:

<span *ngIf="col.field == 'Product'">
  <p-multiSelect [options]="getUniques(col.field)" 
                 (onChange)="dt.filter($event.value, col.field, 'in')">
  </p-multiSelect>
</span>

Here is my button:

<p-button label="Clear All" 
          styleClass="ui-button-primary"
          (click)="onResetAll($event, dt)">
 </p-button>

Here is the method, where I try to reset values, but does not seem to reset:

onResetAll(event, dt) {
    dt.filter('', 'Product', 'contains');
}
primeng angular multi-select
3 Answers

Below for multi multiselect

First set view children selector #cmp

<p-multiSelect #cmp [options]="cars" appendTo="body"
                 (onChange)="table.filter($event.value, 'brand', 'in')">
  </p-multiSelect>

In code behind declare setof components

@ViewChildren('cmp') components: QueryList<MultiSelect>;

And update your button click event

onResetAll(event, dt) {
    this.components['_results'].forEach(ds => {
      ds.value = null;
      ds.updateLabel();
    });
    dt.filter('', 'brand', 'contains');
  }

Demo here

user_57375710

Simplest solution will be :

this.form.get("formcontrolname").setValue([]);

user_38242430

To add to the solution above:-

onResetAll(event, dt) {
  this.components['_results'].forEach(ds => {
    ds.value = null;
    ds.updateLabel();
  });
}

If you are using chips then you will need to add:-

ds.cd.detectChanges();

As there is a refresh issue

user_176846270
Related