Is it possible to add a method to a delegate that was received via an out parameter?

Question

C++ / C#

Hello. A bit of pseudocode. In one class, I have a dictionary with delegates, and a method that finds the desired delegate, this class also invokes these delegates

public bool TryFind(string name, out Action action)
{
       action = dictionary[name];
}

Another class method can take the desired delegate and add a method

public bool AddMethod()
{
      if(TryFind("a", out var value)
      {
            value += methodA;
      }
}

Of course, such code does not work, because after assigning a new method, the delegate object will change. How it is possible to solve such trabl? It is clear that after changing the delegate, you can insert a new delegate in the place where we got it from, but maybe there is an easier way.

Answer 1

With this approach, you have a class encapsulation violation.
Through the methods of the class in which the delegates are stored and you need to add methods to the delegates.