WCF Error Handling

Question

User-665281982 posted

I'm implementing error handling to WCF using IErrorHandler. By making the method ApplyDispatchBehavior, being appointed an error on the line:
channelDispatcher.ErrorHandlers.Add (new ErrorHandler (this));

public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
        {
            foreach (ChannelDispatcherBase chanDispBase in serviceHostBase.ChannelDispatchers)
            {
                ChannelDispatcher channelDispatcher = chanDispBase as ChannelDispatcher;
                if (channelDispatcher == null)
                    continue;

                channelDispatcher.ErrorHandlers.Add(new ErrorHandler(this));
            }
        }

Error 1 The best overloaded method match for has some invalid arguments C: \ ServicesErrorHandling \ ErrorHandlingBehavior.cs 49 17

Error 2 Argument 1: cannot convert from 'ServicesErrorHandling.ErrorHandler' to 'System.ServiceModel.Dispatcher.IErrorHandler' C:\ServicesErrorHandling\ErrorHandlingBehavior.cs 49 53 

What can I do? checked in a solution with 3.5 framework and not of the problem.

Answer 1

User220959680 posted

channelDispatcher.ErrorHandlers.Add(new ErrorHandler(this));

IErrorHandler.HandleError takes single parameter i.e., this.  

Refer 

// This behavior is an IErrorHandler implementation and  
// must be applied to each ChannelDispatcher. 
public void ApplyDispatchBehavior(ServiceDescription description, ServiceHostBase serviceHostBase)
{
  Console.WriteLine("The EnforceGreetingFaultBehavior has been applied.");
  foreach(ChannelDispatcher chanDisp in serviceHostBase.ChannelDispatchers)
  {
    chanDisp.ErrorHandlers.Add(this);      
  }
}

Refer http://msdn.microsoft.com/en-us/library/system.servicemodel.dispatcher.ierrorhandler.handleerror.aspx

Note:- It is same for 3.5 or 4.0 or  4.5

Answer 2

User-665281982 posted

Still giving error:

void IServiceBehavior.ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
        {
            (ChannelDispatcher dispatcher in serviceHostBase.ChannelDispatchers)
            {
                dispatcher.ErrorHandlers.Add(this);
            }
        }

Error 5 The best overloaded method match for 'System.Collections.ObjectModel.Collection<System.ServiceModel.Dispatcher.IErrorHandler>.Add(System.ServiceModel.Dispatcher.IErrorHandler)' has some invalid arguments C:\ErrorHandling\ErrorHandlerExtension.cs 40 17 ErrorHandling

Error 6 Argument 1: cannot convert from 'ErrorHandling.IErrorHandler' to 'System.ServiceModel.Dispatcher.IErrorHandler' C:\ErrorHandling\ErrorHandlerExtension.cs 40 46 ErrorHandling

I dont undestand what might be causing this problem...