using System;

public class Program

{

    public static void Main()

    {

        MyClass c = new MyClass();

        c.Origin.X = 23;   // No error.  Sets X just fine

        Console.WriteLine(c.Origin.X);

    }

}

​

struct Point

{

    public int X { get; set; }

    public int Y { get; set; }

}

​

class MyClass

{

    public Point Origin;

}

​

​