C# inheritance in generics question

Question

I have two interfaces:

public interface A { 
 void aMethod(); 
}


public interface B : A {
 void bMethod();
} 

Later I\'m basically using

Answer 1

I don't think you're going to find a way around your problem because the thinking behind it seems flawed. To illustrate, let's create another interface:

public interface C : A
{
    void cMethod();
}

Now, let's use your code:

Dictionary dict = new Dictionary();

What happens when I try the following?

C c = new ClassThatImplementsC(); 
dict.Add(1, c);

Take a look at Eric Lippert's Covariance and Contravarience FAQ for many, many more details.