How to get all inherited classes

Question

Let's imagine that we have a class called A , and this class is inherited from class B , and also class B inherited from class C . We can extend this sequence as long as we want. How can we get all classes from this sequence? Like:

1. A
2. B
3. C
4. ...

Answer 1

Try this code:

        Type type = typeof(C);
        while (type.BaseType!=null) 
        {
            type = type.BaseType;
            Console.WriteLine(type.Name);
        }
        // C
        // B
        // A
        // Object

Answer 2

var assemblies = AppDomain.CurrentDomain.GetAssemblies();

foreach (var assembly in assemblies)
    foreach (Type type in assembly.GetTypes())
    {
        if (typeof(A).IsAssignableFrom(type))
            Console.WriteLine(type);
    }

// These can be in various projects / assemblies
class A { }
class B : A { }
class C : A { }
class D : B { }
class E { }
class F : E { }
class G : D { }

Prints:

A
B
C
D
G