Ninject

New Comment on "Modules and the Kernel"

loopdebugger — Thu, 24 Jan 2013 18:09:08 GMT

Bind<IWeapon>().To<Sword>(); I need "Bind" example please

New Comment on "Activation Behaviors"

loopdebugger — Thu, 24 Jan 2013 18:07:18 GMT

wait.... what is "Bind"? I can understand that part... is a method i know but what it does?

New Post: How to inject existing instance into target instance?

hlchuah77 — Wed, 28 Nov 2012 04:20:15 GMT

Alright, after numerous trial-and-error processes, I've got the solution and following is the working code:

        IKernel kernel = new StandardKernel();
        kernel.Bind<IFood>().To<AnimalFood>().WithPropertyValue("FoodName", "Pizza");
        IFood food = kernel.Get<IFood>();

        kernel.Bind<IAnimal>().To<Dog>().WithPropertyValue("Name", "Bobby");        
        IAnimal bobbyDog = kernel.Get<IAnimal>();

What happen is, I didn't aware that Ninject cannot inject string type value into property. Though I didn't test further, but I guess it applies the same for all other primitive types such as bool, int, etc.

The other mistake I made was, instead of kernel.Get<IDog>(), I code as kernel.Get<Dog>().

New Post: How to inject existing instance into target instance?

hlchuah77 — Wed, 28 Nov 2012 03:25:58 GMT

I notice that each time when I resolve instance via Ninject kernel (call it InstanceA), Ninject will create a new dependency instance and inject it into my InstanceA.MyProperty.

What I want to achieve is, instead of Ninject to create a new copy of dependency instance, I want Ninject to inject the dependency instance that I have created manually into InstanceA.MyProperty.

I've tried for quite some while and have googled around but I couldn't get any solution. Following is my test code.

        IKernel kernel = new StandardKernel();
        kernel.Bind<IFood>().To<AnimalFood>();
        IFood food = kernel.Get<IFood>();
        food.FoodName = "Pizza";

        kernel.Bind<IAnimal>().To<Dog>().WithPropertyValue("MyFood", food);
        IAnimal bobbyDog = kernel.Get<Dog>();
        bobbyDog.Name = "Bobby";
        //kernel.Inject(bobbyDog);

I expect that the bobbyDog instance will get a food instance with FoodName = "Pizza". However, it turns out not the case.

Source code checked in, #76924

Project Collection Service Accounts — Mon, 01 Oct 2012 21:29:18 GMT

Upgrade: New Version of LabDefaultTemplate.xaml. To upgrade your build definitions, please visit the following link: http://go.microsoft.com/fwlink/?LinkId=254563

Source code checked in, #76923

Project Collection Service Accounts — Mon, 01 Oct 2012 21:23:54 GMT

Checked in by server upgrade

New Comment on "Injection Patterns"

skrzeczowas — Tue, 05 Jun 2012 09:32:50 GMT

Hi, If one leave off InjectAttribute, then: 3. If the type has more than one constructor, and has no default (parameterless) constructor available, Ninject will call first ctor that even partially matches. For example we have test code: using (IKernel kernel = new StandardKernel()) { kernel.Bind<ITaxCalculator>().To<TaxCalculator>().WithConstructorArgument("rate", .2M); var sale3 = kernel.Get<Sale3>(); Assert.IsNotNull(sale3); } And class to test: public class Sale3 { private ITaxCalculator _taxCalculator; public Sale3(ITaxCalculator taxCalculator) { _taxCalculator = taxCalculator; } public Sale3(ITaxCalculator taxCalc, int testInteger) { _taxCalculator = taxCalc; } } In this case test will be run successfully. If we reorder constructors that the one with integer as input parameter will be first, test will fail. So I believe that under the hood Ninject searches for first constructor that accepts desired Interface as an input paramter and then invokes this ctor. Am I correct?

New Post: XML Extension and Weak Event Message Broker Extension

Elisaveta — Fri, 11 May 2012 12:59:22 GMT

Hello all,

I figure out what was the problem. The few examples with XML Extensions are very shorts and they are saying:

 var settings = new NinjectSettings { LoadExtensions = false };

 kernel = new StandardKernel(settings, new XmlExtensionModule());

 kernel.Load("MyConfigFile.xml");

But LoadExtensions = false exclude auto loading of available modules.
So I changed it to:

 kernel = new StandardKernel();

 kernel.Load("MyConfigFile.xml");
And it works perfect - it loads WeakEventMessageBroker Extension, and XML extension too and events are wired up.

New Post: XML Extension and Weak Event Message Broker Extension

Elisaveta — Thu, 10 May 2012 14:47:56 GMT

Hello,
I am newbie in Ninject and IoC and I want to understand how to use it
properly.
I need to use XML configuration for creating my objects (this is a
requirement) and I done that. But I need to use WeakEventMessageBrorker
too. So when create objects by the code (not with XML config file) the
events are wired together and everything works perfect. When create
objects and load XML file the events are not wired.
My xml file looks like basic.xml from the Ninject.Extension.Xml.Test
project:

, and class form code behind

public override void Load()
{
Bind<IService>().To<MyService>();

}

So what is the difference from both object created by xml config file
and from code behind?
I know that Ninject`s goal is to restrict using of xml, but is there
any chance to use Ninject.Extension.Xml and WeakEventMessageBrorker
together?
Thanks in advance

New Comment on "Dependency Injection With Ninject"

hbrizuela — Wed, 11 Apr 2012 20:12:38 GMT

ooops... I guess I should keep reading

New Comment on "Dependency Injection With Ninject"

hbrizuela — Wed, 11 Apr 2012 20:10:34 GMT

having Bind<IWeapon>().To<Sword>(); means whenever I instantiate the class samurai my instance will have a weapon of type sword. Am I wrong? what if I want to create a list or Enumerable of samurai with different kind of weapon. will I have to do it by hand?

New Comment on "user guide"

jameskerry486 — Sat, 24 Jul 2010 04:46:13 GMT

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Source code checked in, #49966

_TFSSERVICE — Mon, 19 Jul 2010 20:19:27 GMT

Checked in by server upgrade

New Post: Is GitHub or CodePlex the source of truth for Ninject?

callagga — Sun, 25 Apr 2010 20:53:09 GMT

PS Just noted that the ninject.org website says the official wiki is at GitHub, however if you google Ninject the documentation link goes to CodePlex.

<cite>ninject.org/ - </cite>Cached - Similar

Documentation for Ninject

New Post: Is GitHub or CodePlex the source of truth for Ninject?

callagga — Sun, 25 Apr 2010 20:47:37 GMT

Hi,

Just wondering which is the most up-to-date repository, or the source of truth, for Ninject code & doco? Is it CodePlex or GitHub?

thanks

New Comment on "Modules and the Kernel"

ng2tuan — Tue, 30 Mar 2010 13:54:30 GMT

shit!

New Comment on "User Guide"

chillitom — Wed, 24 Feb 2010 14:27:12 GMT

Any chance I can get write perms so I can update this documentation (or create new documentation) for Ninject 2?

New Comment on "Dependency Injection By Hand"

DanAtkinson — Fri, 19 Feb 2010 10:27:36 GMT

This is just me being anal, but the actual output of warrior1.Attack("the evildoers") is "Pierced the evildoers's armor.".

New Comment on "User Guide"

bensturley — Tue, 16 Feb 2010 13:06:19 GMT

This documentation is not very complete. Where is detailed explanations of, for example, the contextual binding parameters and valid objects etc to use? E.g. - what is When.Request.Context.Target, and why doesn't it work with Only or OnlyIf bindings?

Commented Issue: NullReferenceException on Bind [4038]

liedman — Mon, 15 Feb 2010 16:43:36 GMT

When doing a my first Bind<T> call in my application, I get the following stacktrace:

[NullReferenceException: Object reference not set to an instance of an object.]
Ninject.Core.Infrastructure.DebugInfo.ShouldIgnoreType(Type type) in d:\Projects\Ninject\src\Core\Infrastructure\Debugging\DebugInfo.cs:156
Ninject.Core.Infrastructure.DebugInfo.FromStackTrace() in d:\Projects\Ninject\src\Core\Infrastructure\Debugging\DebugInfo.cs:128
Ninject.Core.ModuleBase`1.DoBind(Type type) in d:\Projects\Ninject\src\Core\Modules\ModuleBase.cs:269
Ninject.Core.ModuleBase`1.Bind() in d:\Projects\Ninject\src\Core\Modules\ModuleBase.cs:116
SettingsModule.Load() in x:\workspace\tour-manager\web\App_Code\NtmApp.cs:62
Ninject.Core.KernelBase.LoadModules(IEnumerable`1 modules) in d:\Projects\Ninject\src\Core\KernelBase.cs:358
Ninject.Core.KernelBase.Load(IModule[] modules) in d:\Projects\Ninject\src\Core\KernelBase.cs:173
NtmApp..cctor() in x:\workspace\tour-manager\web\App_Code\NtmApp.cs:36

I'm a novice at Ninject, so I might be missing something basic, but this seems like an internal error?
Comments: ** Comment from web user: liedman **

Problems appears to be that my classes NtmApp and SettingsModule are not inside any namespace. Moving them inside a namespace fixes the issue.