async Task Save() { if (String.IsNullOrWhiteSpace(Contact.FirstName) && String.IsNullOrWhiteSpace(Contact.LastName)) { await _pageService.DisplayAlertAsync("Error", "Please enter the name", "Ok"); return; } await _pageService.DisplayAlertAsync("Entro", "Si sale", "Ok"); if (Contact.Id == 0) { await _pageService.DisplayAlertAsync("Entro", Contact.FirstName + " " + Contact.LastName, "Ok"); await _contactStore.AddContactAsync(Contact); ContactAdded?.Invoke(this, Contact); } else { await _contactStore.UpdateContactAsync(Contact); ContactUpdated?.Invoke(this, Contact); } await _pageService.PopAsync(); }