app.component.html

<dx-data-grid id="gridContainer" [dataSource]="customers" [showBorders]="true"
    (onOptionChanged)="onOptionChanged($event)" (onToolbarPreparing)="onToolbarPreparing($event)">
    <dxi-column *ngFor="let col of columns" [visibleIndex]="col.index" [dataField]="col.dataField"
        [(visible)]="col.visible">
    </dxi-column>
</dx-data-grid>


<app-column-chooser [(visible)]="isColumnChooserVisible" [container]="'#gridContainer'" [columns]="columns">
</app-column-chooser>