c# - 使用 View 注册演示者

Question

如果我有这样的主持人 -

public class LandingPresenter : ILandingPresenter
{            
    private ILandingView _view { get; set; }
    private IProductService _productService { get; set; }

    public LandingPresenter(ILandingView view, IProductService)
    {
        ....
    }
}

考虑到依赖 View 不会被注册(但 IProductService 会)，我如何向 Autofac 注册此 Presenter

    builder.RegisterType<LandingPresenter>().As<ILandingPresenter>(); ????

Answer 1

为什么不在容器中也注册 View ，让 Autofac 发挥作用!然后，您可以通过在演示者上使用构造函数注入(inject)和在 View 上使用属性注入(inject)来自动连接演示者和 View 。您只需使用属性接线注册 View 即可:

builder.RegisterAssemblyTypes(ThisAssembly).
    Where(x => x.Name.EndsWith("View")).
    PropertiesAutowired(PropertyWiringFlags.AllowCircularDependencies).
    AsImplementedInterfaces();

演讲者:

public class LandingPresenter : ILandingPresenter
{            
    private ILandingView _view;
    private IProductService _productService { get; set; }

    public LandingPresenter(ILandingView view, IProductService _productService)
    {
        ....
    }
}

查看:

public class LandingView : UserControl, ILandingView
{
    // Constructor

    public LandingView(... other dependencies here ...)
    {
    }

    // This property will be set by Autofac
    public ILandingPresenter Presenter { get; set; }
}

如果您想先查看 View ，那么您应该能够反转它，以便演示者将 View 作为属性。