Comments on: Using Ninject.Extensions.Interception Part 2 : Working with Interceptors

By: Pankaj Banga

Pankaj Banga — Thu, 12 Aug 2010 04:19:42 +0000

I am having issue where UI is not getting updated when a method is intercepted on ViewModel. The VideModel is initialised as singleton by the container. On debugging I found that the PropertyChanged event is not raised on the ViewModel because there is no subscriber for the event. if (PropertyChanged != null) fails. I am using attribute based interception. If I remove the attribute from the method on ViewModel the UI is updated successfully. My ViewModel implements INotifyPropertyChanged interface. Could you please help. Thanks.

By: sportfier

sportfier — Thu, 22 Apr 2010 01:56:12 +0000

Hey Ian,

I got swamped right after getting your reply. I've put a project together and will email it to you shortly.

Mike

By: innovatian

innovatian — Fri, 02 Apr 2010 23:07:33 +0000

Can you email me an example project? Seeing the code is much easier to debug.

By: sportfier

sportfier — Fri, 02 Apr 2010 23:05:27 +0000

Ian,

I'm making good progress with this. However I haven't figured out how to intercept the property of a base class from a derived class (base class is abstract, property is virtual). Virtual properties that are defined in the derived class work just fine (intercepting the set method). I tried overriding the property in the derived class, interception on that isn't working either. Is it not possible?

Thanks,

Mike

By: innovatian

innovatian — Wed, 31 Mar 2010 02:51:05 +0000

make sure you have this at the top of your file. Get is implemented as an extension method:
using Ninject;

By: sportfier

sportfier — Wed, 31 Mar 2010 02:48:32 +0000

I'm trying to follow your example above:

03 public override IInterceptor CreateInterceptor( IProxyRequest request )

04 {

05 return request.Context.Kernel.Get();

06 }

... There is no Get<> method on Kernel. (downloaded latest from github today)... can you offer any tips?

Thanks,

Mike