Is it possible to remove an existing registration from Autofac container builder?

Question

Something along those lines:

builder.RegisterType().As();
builder.RegisterType().As();
builder.DeRegis         


        

Answer 1

This cannot be done directly using the ContainerBuilder, unless you start over with a new one. Mind you, having first built a container you should be able to construct a new container filtering away unwanted types and reusing the registrations from the first container. Like this:

...
var container = builder.Build();

builder = new ContainerBuilder();
var components = container.ComponentRegistry.Registrations
                    .Where(cr => cr.Activator.LimitType != typeof(LifetimeScope))
                    .Where(cr => cr.Activator.LimitType != typeof(MyType));
foreach (var c in components)
{
    builder.RegisterComponent(c);
}

foreach (var source in container.ComponentRegistry.Sources)
{
    cb.RegisterSource(source);
}

container = builder.Build();

This is hardly very elegant but it works. Now, if you could elaborate on why you want to do this, perhaps there is a better way.