未能通过通用的参数与温莎城堡 [英] Failure to pass generic arguments with Castle Windsor

问题描述

似乎有一个问题，通过通用的参数试图以创建一个参数化的实例时，城堡温莎

There seems to be an issue with passing generic arguments when attempting to create a parametrized instance with Castle Windsor

    private static void Main(string[] args)
    {
        PassGenericParamAtResolutionTime();
        Console.ReadLine();
    }

    private static void PassGenericParamAtResolutionTime()
    {
        Console.WriteLine("Passing generic argument fails");
        var container = new WindsorContainer();
        container.Register(Component.For<ISandCoordinator<Simpleton>>()
                           .ImplementedBy<SandCoordinator<Simpleton>>());
        var runtimeConstructorParam = new GenericManager<Simpleton>(
                                          "This Id Does Not Get Through");
        var runtimeArguments = new Arguments(
                                   new object[] {runtimeConstructorParam});
        var shouldBeParameterizedCoordinator = container
                   .Resolve<ISandCoordinator<Simpleton>>(runtimeArguments);
        Console.WriteLine(shouldBeParameterizedCoordinator.Log);
    }

控制台输出

Passing generic argument fails
Birth from parameterless constructor, which should not happen

如果我注释掉参数的构造函数下面，我得到了以下异常：

And if I comment out the parameterless constructor below, I get the following exception:

Castle.MicroKernel.Resolvers.DependencyResolverException was unhandled
Missing dependency.
Component Sand.SandCoordinator`1[[Sand.Simpleton, WindsorSand, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]] has a dependency on Sand.IGenericManager`1[Sand.Simpleton], which could not be resolved.
Make sure the dependency is correctly registered in the container as a service, or provided as inline argument.

演示类与两个构造

class SandCoordinator<TSimpleton> : ISandCoordinator<TSimpleton>
                                    where TSimpleton : ISimpleton
{
    public SandCoordinator()
    {
        Log = "Birth from parameterless constructor, which should not happen";
    }

    public SandCoordinator(IGenericManager<TSimpleton> manager)
    {
        Log = "Birth from parameterized constructor";
        Log += Environment.NewLine + "Born With Manager: " + manager.Id;
    }        

    public string Log { get; private set; }
}

解决方案/解决方法？

• 我知道，如果我创建一个非泛型类型接口ISimpleSandCoordinator：ISandCoordinator＆LT;心眼＆GT; 和注册非通用接口，那么参数化解析工作，但我不'吨要停止使用泛型类型
• 如果有这样的申请在温莎城堡？
中的错误

Solutions / Workarounds?

• I know that if I create a non-generic type interface ISimpleSandCoordinator : ISandCoordinator<Simpleton> and register the non-generic interface then parametrized resolution works, but I don't want to stop using generic types
• Should this be filed as a bug in Castle Windsor?

[使用Castle.Core.dll和Castle.Windsor.dll 3.1.0（2012-08- 05）]

推荐答案

您 SandCoordinator＆LT; T＆GT; 依赖于 IGenericManager＆LT; T＆GT; ，不是 GenericManager＆LT; T＆GT;

当你把一个价值在参数要温莎你必须要明确它是比它的具体类型别的东西使用。

When you're putting a value in Arguments that you want Windsor to use as something else than its concrete type you have to be explicit about it.

new Arguments { { typeof(IGenericManager<Simpleton>), runtimeConstructorParam } };

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