Angular 2 Focus on first invalid input after Click/Event

Question

I have an odd requirement and was hoping for some help.

I need to focus on the first found invalid input of a form after clicking a button (not submit). The form is rath

Answer 1

I recommend putting this in a service, for me it worked like this:

if (this.form.valid) {
  //submit
} else {
  let control;
  Object.keys(this.form.controls).reverse().forEach( (field) => {
    if (this.form.get(field).invalid) {
      control = this.form.get(field);
      control.markAsDirty();
    }
  });

  if(control) {
    let el = $('.ng-invalid:not(form):first');
    $('html,body').animate({scrollTop: (el.offset().top - 20)}, 'slow', () => {
      el.focus();
    });
  }
}