Loop for all objects of class without List/Array

Question

It's possible to obtain a collection of all objects of certain class?

Given some arbitrary class, for example:

public class MyClass {
   public int anyVal;
   /* ...etc ... */
}

Is it possible to obtain a collection of all objects of certain class so you can iterate through them, like perhaps:

MyClass obj = new MyClass();
obj.anyVal = 333;

MyClass[] allObjects = //???              // <== HERE

foreach (MyClass mObj in allObjects) {
    Console.WriteLine("obj = " + mObj.anyVal);
}

@fubo i think the question is about instances of a class, but not about encapsulated objects. — Diligent Key Presser
– Diligent Key Presser, Commented Mar 4, 2016 at 12:12
Do you mean iterating over all the properties? It's really unclear what you're trying to do at the moment. — Jon Skeet
– Jon Skeet, Commented Mar 4, 2016 at 12:12
@fubo User does not asks how to iterate over <b>properties</b> of an instance. — tchelidze
– tchelidze, Commented Mar 4, 2016 at 12:12
Possible duplicate of How do I get all instances of all loaded types that implement a given interface? — Rik
– Rik, Commented Mar 4, 2016 at 15:09

Rik · Accepted Answer · 2016-03-04 15:11:37Z

0

No. You'd have to examine the Heap somehow and check the type for every object there. Not something you want to be doing.

answered Mar 4, 2016 at 15:11

Rik

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