Way to fill collection with Unity

Question

I have two example classes

class ClassToResolve
{
    private List _coll;

    public ClassToResolve(List coll)
          


        

Answer 1

@Steven's answer is perfectly correct, I just want to suggest another way to tackle the issue.

For the sake of a better and cleaner code, it is worth it to define an interface for all the collection items.

public interface IMyClass
{
    void DoSomething();
}

public abstract class MyClassBase : IMyClass
{
    abstract void DoSomething();
    // more code for the base class if you need it.
}

public class MyClassA : MyClassBase
{
    void virtual DoSomething()
    {
        // implementation here
    }
}

public class MyClassB : MyClassBase
{
    void virtual DoSomething()
    {
        // implementation here
    }
}

public class MyClassC : MyClassBase
{
    void virtual DoSomething()
    {
        // implementation here
    }
}

// etc.

Now the registration code for Unity container would be much more easier:

container.RegisterTypes(
    AllClasses.FromLoadedAssemblies().
        Where(type => typeof(IMyClass).IsAssignableFrom(type)),
    WithMappings.FromAllInterfaces,
    WithName.TypeName,
    WithLifetime.PerResolve);

container.RegisterType, IMyClass[]>();

and the resolve code is the same:

var allOfMyClasses = container.ResolveAll();

I hope Microsoft add IEnumerable<> support to the next version of Unity so we won't need to register IEnumerable.