Injecting a class that is in other assembly using ninject

Question

My project is done using portable areas, I’m using ninject for DI, I’m injecting a class that is in other assembly, so I have this code in the areaRegistraction:

DependencyResolver.Current.GetService<IModuleManager>().Add(this.module);  
IKernel kernel = DependencyResolver.Current.GetService<IKernel>();  
kernel.Bind<IConfigurationRepository>().To<ConfigurationRepository>();

In my constructor I have this code:

public RequestController(IconfigurationRepository configurationRepository)
{
    this.configurationRepository= configurationRepository;
}

But by some reason configurationRepository is null

But if I put:

public RequestController()
{
   this.configurationRepository = ((StandardKernel)DependencyResolver.Current.GetService<IKernel>()).GetAll<IConfigurationRepository>().First();
}

It works fine. What is the different between them?

Any clue will be really appreciated.

How exactly doesn't it work? Does it give you a two-week notice or what? — Fyodor Soikin, Dec 14 '11 at 00:51
I updated my question. The problem is that configurationRepository is null — user1096760, Dec 14 '11 at 01:17

score 3 · Accepted Answer · answered Dec 14 '11 at 01:11

3

The second implementation will work if several IConfigurationRepository are registered but the first one will fail in this case.

What's the exception in the first case? What happens if you use Single instead of First in the second case?

answered Dec 14 '11 at 01:11

Remo Gloor

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In first case configurationRepository is null. If i use single – user1096760 Dec 14 '11 at 01:20
If i use single instead of First in the second, give it exception:Sequence contains more than one element. – user1096760 Dec 14 '11 at 01:21
2

There you have the problem. Ninject does not allow having multiple bindings because it would be ambiguous which one to take. – Remo Gloor Dec 14 '11 at 01:34

Injecting a class that is in other assembly using ninject

1 Answers1