private void OnValidationChanged(ValidationChangedEventArgs args)
        {
            if (args.Placeholder.Id != View.Model.Id)
            {
                return;
            }

            View.SetValidationResult(args.Result);
        }
 private void OnValidationChanged(ValidationChangedEventArgs args)
 {
     View.SetValidationResult(args.Placeholder, args.Result);
 }