unity-container

Is it possible to inject a list of dependencies like this in Unity or other kind of IoC libraries? public class Crawler { public Crawler(IEnumerable<IParser> parsers) { // init here... } } In this way I can register multiple IParser in my container and then resolve them. Is it possible? Thanks It is possible but you need to apply some workarounds. First you need to register each IParser with a name in the Unity Container. Second you need to register a mapping from IParser[] to IEnumerable<IParser> in the container. Otherwise the container cannot inject the parsers to the constructor. Here´s

I was trying to clean up some accessability stuff in my code, and inadvertently broke Unity dependency injection. After a while I realized that I marked some public properties that I didn't really want exposed outside my DLLs to internal. Then I started getting exceptions. So it seems that using the [Dependency] attribute in Unity only works for public properties. I suppose that makes sense since the internal and private props wouldnt be visible to the Unity assembly, but feels really dirty to have a bunch of public properties that you never want anyone to set or be able to set, other than

With structure map, you can register a convention that lets you not just tweak the type, but also intervene during object creation. How can I do this with Unity. public class SettingsRegistration : IRegistrationConvention { public void Process(Type type, Registry registry) { if (!type.IsAbstract && typeof(ISettings).IsAssignableFrom(type)) { registry.For(type).Use(x => { var svc = x.GetInstance<ISettingService>(); return svc.LoadSetting(type); }); } } } You can do this with a combination of Unity's Registration by Convention and an InjectionFactory . I see three common options for

My ASP.Net MVC 4 Web API controller dosn't work with Unity.WebApi. In the same project simple controllers works with Unity.Mvc3 properly. But when I run Web API controller derived from ApiController I'm getting a message: {"$id":"1","Message":"An error has occurred.","ExceptionMessage":"Type 'ElectricTests.Controllers.Api.DocumentsController' does not have a default constructor","ExceptionType":"System.ArgumentException","StackTrace":" at System.Linq.Expressions.Expression.New(Type type)\r\n at System.Web.Http.Internal.TypeActivator.Create[TBase](Type instanceType)\r\n at System.Web.Http

I have the following classes: public interface IServiceA { string MethodA1(); } public interface IServiceB { string MethodB1(); } public class ServiceA : IServiceA { public IServiceB serviceB; public string MethodA1() { return "MethodA1() " +serviceB.MethodB1(); } } public class ServiceB : IServiceB { public string MethodB1() { return "MethodB1() "; } } I use Unity for IoC, my registration looks like this: container.RegisterType<IServiceA, ServiceA>(); container.RegisterType<IServiceB, ServiceB>(); When I resolve a ServiceA instance, serviceB will be null . How can I resolve this? You have at

I'm using Prism, which gives be the nice Unity IoC container too. I'm new to the concept, so I haven't gotten my hands all around it yet. What I want to do now is to create an object using the IoC container, but passing an extra parameter too. Allow me to explain with an example..: I have a class that takes a commands object. This is registered in the IoC container, so it will handle it nicely: public class Person { public Person(IApplicationCommands commands) { .. } .. } Person person = _container.Resolve<Person>(); Now - I want to pass in another argument - e.g. the name of the person.

I'm building a .Net Web API which uses a Service+Repository pattern w/ Entity Framework. Each controller's CRUD actions relay data retrieved by calls to a Service. I have a SomeContext that extends DbContext: public class SomeContext : DbContext { public SomeContext(string connString) : base(connString) { } // DbSets ... } The Service is initialized w/ a constructor that accepts an ISomeContext: public class Service : IService { public Service(ISomeContext ctx) : base(ctx) { _alpha = new AlphaRepository(ctx); ... } GetAllAlpha() { return _alpha.Get(); } ... } I want to use (Unity Container)