inversion-of-control

问题 If I have an implementation of Human and Dog class which uses the IPerson interface and HumanFood and DogFood class using the IFood interface. How can I switch from using HumanFood to DogFood and Human to Dog in my main function? Currently the way this is written it is giving me a "more than one matching bindings are available" error. Thanks! public class Bindings : NinjectModule { public override void Load() { this.Bind<IFood>().To<HumanFood>(); this.Bind<IFood>().To<DogFood>(); this.Bind

问题 I'm trying to inject TenantProvider into DbContext public class AppDbContext : IdentityDbContext<ApplicationUser, ApplicationRole, long> { public int? _tenantId; public ITenantProvider _tenantProvider; public AppDbContext( DbContextOptions<AppDbContext> options, ITenantProvider tenantProvider ) : base(options) { _tenantProvider = tenantProvider; } but I don't understand how to register it correctly - if I put the breakpoint in the constructor - tenantProvider is null . The bit from Startup.cs

问题 I was wondering.. if i have services such ILoggingService, IMailerService, ICacheService. Those are part of the infrastructure somehow. However, would you make them as a static class or would you inject them in a base class so that all derived classes get access to them as singleton ? How do you handle them ? 回答1: Dependencies often represent infrastructure components. Not only emailing, but data access of any kind can be considered part of the infrastructure. Such Services are best kept as

问题 Due on Improper Instantiation problem it is recommended to create private static readonly instance of HttpClient . Due on lack of time I have injected mocked client into test method with client as their parameter. The problem is how can I in simple way inject mock into private static readonly HttpClient field of SingleHttpClientInstanceController ? 回答1: how can I in simple way inject mock into private static readonly HttpClient field of SingleHttpClientInstanceController ? Answer: There is no

问题 Due on Improper Instantiation problem it is recommended to create private static readonly instance of HttpClient . Due on lack of time I have injected mocked client into test method with client as their parameter. The problem is how can I in simple way inject mock into private static readonly HttpClient field of SingleHttpClientInstanceController ? 回答1: how can I in simple way inject mock into private static readonly HttpClient field of SingleHttpClientInstanceController ? Answer: There is no

问题 I have a solution in which I use IoC (windsor). The projects in the solution are as follows: Interfaces - Holds all the interface contracts I'll use. IoC.Installers - Holds all the installers for my dependencies (has reference to impl. and interfaces) IoC - Holds a singleton class that holds the IoC container. The class performs the initialization process of the container. Console - The project that uses the IoC to resolve dependencies (has reference to interfaces an IoC) The problem: Because

问题 I am attempting to inject an object into my saga. Using the following endpoint, when the message arrives at the handle method of the saga the property is null. The endpoint: public class EndpointConfig : IConfigureThisEndpoint, AsA_Server, IWantToRunAtStartup { public void Run() { IOrderRepository orderRepository = new OrderRepository(); Configure.Instance.Configurer.ConfigureProperty<CreateOrderSaga>(x => x.OrderRepository, orderRepository); } // stop method removed } The app.config <?xml

问题 I'm trying to figure out the best way to share an instance of a class between two other classes that depend on it. Say I have these classes: class A { public A(B b, C c) {} } class B { public B(IDFactory factory) {} } class C { public C(IDFactory factory) {} } interface IDFactory { D GetD(); } class D {} And for each instance of A , I want the D used by c and d to be a single instance of D . When I create a new instance of A (say using a factory), I want c and d to share a new instance of D.

问题 I'm trying to figure out the best way to share an instance of a class between two other classes that depend on it. Say I have these classes: class A { public A(B b, C c) {} } class B { public B(IDFactory factory) {} } class C { public C(IDFactory factory) {} } interface IDFactory { D GetD(); } class D {} And for each instance of A , I want the D used by c and d to be a single instance of D . When I create a new instance of A (say using a factory), I want c and d to share a new instance of D.

问题 I'm trying to figure out the best way to share an instance of a class between two other classes that depend on it. Say I have these classes: class A { public A(B b, C c) {} } class B { public B(IDFactory factory) {} } class C { public C(IDFactory factory) {} } interface IDFactory { D GetD(); } class D {} And for each instance of A , I want the D used by c and d to be a single instance of D . When I create a new instance of A (say using a factory), I want c and d to share a new instance of D.