public PersonListViewModel(IScreen hostScreen, IPersonRepository personRepository = null)
{
HostScreen = hostScreen;
personRepository = personRepository ?? new PersonRepository();
Persons = new ReactiveList<PersonItemViewModel>();
NewPersonCommand = new ReactiveCommand(null);
NewPersonCommand.RegisterAsyncAction(_ => { }).Subscribe(_ => HostScreen.Router.Navigate.Execute(new PersonAddViewModel(HostScreen)));
RefreshCommand = new ReactiveCommand(null);
var refresh = RefreshCommand.RegisterAsync<List<Person>>(_ => Observable.Start(() => personRepository.RetrievePersonsAsync().
Result));
refresh.Subscribe(list =>
{
using (Persons.SuppressChangeNotifications())
{
Persons.Clear();
Persons.AddRange(personRepository.RetrievePersonsAsync().
Result.Select(d => new PersonItemViewModel(d.FirstName,
d.LastName,
d.Age)));
}
});
MessageBus.Current.Listen<Person>().
Subscribe(p =>
{
personRepository.AddPerson(p);
RefreshCommand.Execute(null);
});
}
