public PersonViewModel()
        {
            personData = DependencyService.Get <IPersonData>();

            OnPersonDataBind = async() =>
            {
                PersonList = new ObservableCollection <PersonModel>((await personData.GetPersonData()).ToList());
            };
            OnPersonDataBind();

            //PersonList = new ObservableCollection<PersonModel>(personData.GetPersonData().Result.ToList());

            DeleteCommand = new Command((name) => OnDeleteCommand(name.ToString()));
        }