Assign different object to a one object in C#

Question

I'm coding a game with cocosharp in C# for iOS. I want to have an object that will store different objects from different classes and through this object I want call public methods from this objects. The problem is that active object can be from three different classes with public methods with same name. My vision is like this:

//object for store active object
General_class active_object = new General_class();

//my_game_object is active layer now
active_object = my_game_object;


// pop_in() is method that has same name in different classes
active_object.pop_in();

My question is if is something like this even possible and what should be the General_class class.

Thank you

edit

I forgot to mention that my_game_object inherits from CCLayer class from cocossharp library.

edit 2

This thread solves my problem.

Answer 1

Easy, make those three classes implement an interface:

public interface ILayer
{
    void pop_in();
}

// one of your classes
public class SomeLayer : ILayer
{
    // ...
}

//object for store active layer
ILayer active_layer = new SomeLayer();

// rest of the code works

Although I suspect that probably means your basic knowledge of C# is limited. Perhaps you should grab a book.