asp.net-mvc - 向 Controller 构造函数注入(inject)服务时出现不一致的可访问性参数类型错误

Question

而向 Controller 注入(inject)服务显示错误“不一致的可访问性:参数类型'IProductRepository'比方法'ProductController.ProductController(IProductRepository)'更难访问”

使用的工具/框架:visualstudio_2015、mvc 4.6 和 unity_Container_4

我对这个“IoC”很陌生，我想我错过了一些东西

错误代码

private IProductRepository _IobjProductRepository;
//error shown in this code part
 Injecting Service to Controller shows error -->
public ProductController(IProductRepository Repository)
 { _IobjProductRepository = Repository;} 
 <--error shown in this code par

吨

引导码

private static IUnityContainer BuildUnityContainer()
    {
      var container = new UnityContainer();
      container.RegisterType<IProductRepository,ProductRepository>();
      container.RegisterType<IController,ProductController>();
            // register all your components with the container here
            // it is NOT necessary to register your controllers

            // e.g. container.RegisterType<ITestService, TestService>();  
            // MvcUnityContainer.Container = container;

            RegisterTypes(container);  
            return container;
    }
    public static void RegisterTypes(IUnityContainer container){}

Answer 1

让您的IProductRepository公共(public)接口(interface)。

public interface IProductRepository 
{
  // your properties & methods
}