How to connect interface<T> and implementation<T> in autofac .config file

Question

I have following class

namespace MyApplication.Services
{
    public class TagEqualityComparer : IEqualityComparer<Tag>{/*code goes here*/}
}

Now what I would like to register it in autofac using .config file based configuration:

<autofac>
    <components>
        <component type="MyApplication.Services.TagEqualityComparer, MyApplication.Services"
                   service="System.Collections.Generic.IEqualityComparer, mscorlib" />
    </components>
</autofac>

I have already spent whole sunday searching for solution I failed to find any. Other registrations, non templates, works perfectly but this one refuses. Any idea how to solve it?

Answer 1

You need to define the rest of the generic type to specify the parameter type. Something like this:

<component type="MyApplication.Services.TagEqualityComparer, MyApplication.Services"
               service="System.Collections.Generic.IEqualityComparer`1[[MyApplication.Services.Tag, MyApplication.Services]], mscorlib" />