Unity 容器注入构造函数 - 无法将 lambda 表达式转换为类型“object[]”因为它不是委托类型

Question

有谁知道如何解决 Unity Container InjectionConstructor 没有 Func任何重载这一事实？

this.unityContainer
  .RegisterType<IService1Client, Service1Client>()
  .Configure<InjectedMembers>()
  .ConfigureInjectionFor<Service1Client>(
    new InjectionConstructor(() => 
      this.unityContainer.Resolve<User>()
        .SelectedDepartment
        .ApplicationServerUrl
        .ToString()));

干杯，

Answer 1

您可以使用 InjectionFactory。

this.unityContainer.RegisterType<IService1Client>(
  new InjectionFactory((ctr, type, name) =>
  {
    User user = this.unityContainer.Resolve<User>();
    string url = user.SelectedDepartment.ApplicationServerUrl.ToString();
    return new Service1Client(url);
  }));

Answer 2

我想我自己找到了答案：

Func<string> GetApplicationServerUrl = () => {
  return this.unityContainer.Resolve<User>()
    .SelectedDepartment
    .ApplicationServerUrl
    .ToString(); 
};

this.unityContainer.RegisterType<IService1Client, Service1Client>()
  .Configure<InjectedMembers>()
  .ConfigureInjectionFor<Service1Client>(
    new InjectionConstructor(GetApplicationServerUrl()));