CODEWITHSUNDEEP
c#garbage-collection
Felipe Müller
Felipe Müller

Reputation: 225

Ignore a specific reference for garbage collection

Let's say I have this:

public static class FooKeeper
{
    public static List<Foo> foos = new List<Foo>();
}


public class Foo
{
    public Foo()
    {
        FooKeeper.foos.Add(this);
    }
}

I would like to do so that when an object of type Foo gets garbage collected, then I would manually remove it from the list in the FooKeeper class. Of course that doesn't make sense, since Foo objects cannot be garbage collected because FooKeeper will always have a reference to them.

Is there any way to tell GC to ignore that reference that the list in FooKeeper has? or some other way around this?

Upvotes: 0

Views: 1026

Answers (1)

Hamlet Hakobyan
Hamlet Hakobyan

Reputation: 33381

Use WeakReference to achieve what you want.

public static List<WeakReference<Foo>> foos = new List<WeakReference<Foo>>();

Upvotes: 4

Related Questions