获取包含类的实例 [英] Get instance of containing class

问题描述

是否可以在不传递和存储引用的情况下从成员对象访问对象?在下面的示例中，给定的椅子对象是否可以访问房屋对象，而房屋不必将其引用向下传递给成员层次结构?

Is it possible to access an object from a member object without passing and storing a reference? In the example below, could a given chair object get access to the house object without the house having to pass its reference down the members hierarchy?

public class Chair {
    public string Material { get; set; }

    public Chair() {
       Material = "Wood";
    }

    public bool IsInMiami() {
       // Get instance of House where chair is found
       House house = ... // Reflection?
       return house.City.Equals("Miami");
    }
}

public class Room {
    private List<Chair> _chairs;

    public Room() {
       _chairs = new List<Chair>();
       _chairs.Add(new Chair());
    } 
}

public class House {
    private List<Room> _rooms;
    public string City { get; set; }

    public House() {
       _rooms = new List<Room>();
       _rooms.Add(new Room());
       City = "Orlando";
    }
}

答案可能是通过反思，但我不知道该怎么做，或者还有另一种方法可以实现这一目标.

The answer could be via reflection but I don't have a clue how to do it, or is there another way to achieve the same.

预先感谢

推荐答案

在没有主席提及众议院的情况下，无法做到这一点.从主席的角度来看，它与众议院之间没有任何关系.实际上，主席可能属于许多议院，也可能不属于任何议院.

There is no way to do that without the Chair having a reference to the House. From the point of view of the Chair, there is no relationship between it and a House. In fact, the Chair could belong to many Houses, or no Houses.

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