I dont know if this code is using a Lambda expression or is this called Expression-bodied Members

Question

I am using the MVVM pattern and this is a Constructor of the ViewModel. I dont understand if this is a Lambda Expression? But I would greatly appreciate if anyone could explain to me this syntax. I understand what its doing I just would like to understand the syntax, particularly the arrow =>. And what if I wanted to have some other statements in this Constructor.

public MainPageViewModel() => Items = new ObservableCollection<Person>
{

    new Person(1,"John Smith","300 W. Main","India"),
    new Person(2,"Ron Stevenson","N. Broadway","Washington"),
    new Person(3,"Sally Smith","6700 W. Covington","Casablanca"),
    new Person(4,"Ken Jenkins","500 E. Washington","NYC")
};   

Answer 1

I guessed that adding the missing code would look following code.

class MainPageViewModel
{
    public MainPageViewModel() => Items = new ObservableCollection<Person>
    {
        new Person(1,"John Smith","300 W. Main","India"),
        new Person(2,"Ron Stevenson","N. Broadway","Washington"),
        new Person(3,"Sally Smith","6700 W. Covington","Casablanca"),
        new Person(4,"Ken Jenkins","500 E. Washington","NYC")
    };

    public ObservableCollection<Person> Items { get; }
}

If this is correct, the conversion can be done as follow.

class MainPageViewModel
{
    public MainPageViewModel()
    {
        this.Items = new ObservableCollection<Person>
        {
            new Person(1,"John Smith","300 W. Main","India"),
            new Person(2,"Ron Stevenson","N. Broadway","Washington"),
            new Person(3,"Sally Smith","6700 W. Covington","Casablanca"),
            new Person(4,"Ken Jenkins","500 E. Washington","NYC")
        };
    }

    public ObservableCollection<Person> Items { get; }
}

This is the constructor that initializes the Items property.

To sum up, your presented code is Expression-bodied constructor.