Autofac 通用委托工廠

Question

我想為所有類型或 class 注冊一個通用委托工廠：有辦法嗎？ 在一個解決方案下，一次注冊一個類型/類......不是很好，還有其他方法嗎？

    public class Foo<T>

    {

        public string Name { get; set; }

        public T Value;

    }

    public class FooBuilder<T>

    {

        public Foo<T> Build(string name)

        {

            return new Foo<T> { Name = name };

        }

    }


    public delegate Foo<T> FooFactory<T>(string name);



    public static void TestFoo()

    {

        var builder = new ContainerBuilder();

        builder.RegisterType<FooBuilder<double>>();

        builder.Register<FooFactory<double>>(c =>    c.Resolve<FooBuilder<double>>().Build);

        IContainer container = builder.Build();

        var foo1 = container.Resolve<FooFactory<double>>()("foo1");

    }

Answer 1

您可以將“開放泛型”注冊為提供服務。 對於您的示例：

var builder = new ContainerBuilder();

// This registers an open generic that can provide all FooBuilder<T>.
builder.RegisterGeneric(typeof(FooBuilder<>));

var container = builder.Build();

// Resolve the builder directly...
var fooBuilder = container.Resolve<FooBuilder<double>>();

// ...or get a factory method if that's what you need
var fooBuilderFactory = container.Resolve<Func<FoodBuilder<double>>>();