AutoPropertyCompiled.cs

public class Person
{
    private string _firstName;
    private string _lastName;
    private int _age;

    public string FirstName
    {
        get
        {
            return _firstName;
        }
        set
        {
            _firstName = value;
        }
    }

    public string LastName
    {
        get
        {
            return _lastName;
        }
        set
        {
            _lastName = value;
        }
    }

    public int Age
    {
        get
        {
            return _age;
        }
        set
        {
            _age = value;
        }
    }
}