CODEWITHSUNDEEP
c#.netunity-container
SohamC
SohamC

Reputation: 2437

Unity Container resolve with dynamic parameters

I have a situation where I would like to resolve a class with a dynamic constructor parameter in my ASP.NET 4, MVC web application. I am using Unity v4.0.1. I need the value that is passed to the constructor of the service on Resolve to be be different for each request as shown below. 

var obj = new MyObject();
container.RegisterType<IMyService, MyService>(
          new PerRequestLifetimeManager(), 
          new InjectionConstructor(obj));

How do I achieve this?

Upvotes: 1

Views: 1308

Answers (1)

SohamC
SohamC

Reputation: 2437

I was able to achieve it as below by taking help from here.

Register my type as

container.RegisterType<IMyService, MyService>(new PerRequestLifetimeManager());

In my Global.asax.cs

protected void Application_BeginRequest()
{
    var obj = new MyObject();

    container
        .Resolve<IMyService>(
            new ParameterOverrides
              {
                  {"obj", obj},
              }.OnType<MyService>()
        );
}

Make sure to have the constructor of MyService as

public MyService(MyObject obj){
    //do something here
}

Upvotes: 2

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