HttpModule and WCF (AspNetCompatibilityRequirementsMode.Allowed)

[vycma]

Hello,

 

I'm hosting WCF services in Asp.net web page in (ASP.NET Compatibility Mode: AspNetCompatibilityRequirementsMode.Allowed). I've written simple HttpModule:

 

public class ExceptionInterceptor : IHttpModule
{
   public ExceptionInterceptor()
   {
   }

   public void Dispose()
   {
   }

   public void Init(HttpApplication context)
   {
       context.Error += new EventHandler(context_Error);
   }

   void context_Error(object sender, EventArgs e)
   {
       // do something
   }
}

 

web.config:

 

<httpModules>
       <add name="ExceptionInterceptor" type="HttpModules.ExceptionInterceptor, HttpModules"/>
</httpModules>

 

My question is, why after occurence of unhandled exception in service, the code do not enter in context_Error(object sender, EventArgs e) function in my module.

 

What's more, the code do not even enter the Application_Error(object sender, EventArgs e) in Globals.asax. Can someone explain that to me ?

 

What is the best option for global exception handling in WCF services ?

 

Regards

[PlausiblyDamp]

Not something I have done personally however I think you are best creating a class that implements the IErrorHandler interface, http://msdn.microsoft.com/en-us/library/system.servicemodel.dispatcher.ierrorhandler.aspx might be a good starting point.

[vycma]

Thanks Man, i've actually done exception handling exactly that way from msdn. But I still don't know why the asp httpModule don't work.

Take care.