从子对象中找到“集合”

Question

Is there a method to understand if a generic C# Object is part of a collection? And is there a way to retrieve said collection?

I know an Object is not aware of being part of another (no references stored anywhere about parents) but maybe one could use reflection on generic collections.

Answer 1

To answer original question : no, you're not supposed to be able to find parent collection of an object, and reflection probably won't help.

But you may be able to achieve what you need by modifying behavior of ICollection.Add() by using extension methods and storing in each added objects a reference to their common container.

Putting additional data in objects seems to be achievable, as it is stated here : How can additional data be associated with existing objects using extension methods?

There may be other solutions to achieve what you need, but on my self I'd go with something like that.