Unity resolving cyclic dependency

Question

While learning Unity (DI framework in C#) I came across a situation where one class has a setter injection of ClassB

class ClassA :         


        

Answer 1

I agree with @Haney that this is a code smell, but it is technically possible...

Just change one of the referenced types to be resolved via Lazy. Then it does not actually resolve that type until it is used which will break out of the infinite recursion loop.

i.e.

class ClassB : IClassB
{
...
    [InjectionConstructor]
    public ClassB(Lazy classA)
    {
        _classA = classA;
    }
}