Angular2 - Prevent Checkbox from being checked

HTML

 <input type="checkbox" [checked]="isChecked" (click)="onClick($event)">

Code

onClick(e){
  e.preventDefault();

 // In my case, I'm using the popup.
 // so once user confirms then hits api and update checkbox value.
 this.isChecked = true;
}

ngModelChange is fired when value binded to checkbox has changed, it's late for stop the toggle operation.

Here you should bind with click event. Then you can use $event.preventDefault() to stop checkbox from been toggled.

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You can event add some logic before $event.preventDefault() to determin whether the checkbox should be prevent from changing status.

see Plunker demo.