EventToCommand Xamarin Forms - Example ViewModel

eventtocommand-xamarin-forms-example-wm.cs

public class HomeViewModel : ViewModelBase
{
    public ObservableCollection<PersonViewModel> People { get; set; }

    public RelayCommand<PersonViewModel> SayHelloCommand { get; set; }

    public HomeViewModel()
    {
        People = new ObservableCollection<PersonViewModel>
        {
            new PersonViewModel("John"),
            new PersonViewModel("Mike"),
            new PersonViewModel("Jane")
        };

        SayHelloCommand = new RelayCommand<PersonViewModel>(SayHello);
    }

    public void SayHello(PersonViewModel person)
    {
        Debug.WriteLine("Hello {0}!", person.Name);
    }
}