Exception has been thrown by the target of an invocation.

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I want create dynamic WCF service channel in VS-2010 using ChannelFactory as follows.

I have one WCF service which is calling another WCF service using ChannelFactory as follows,

C#

BasicHttpBinding myBinding = new BasicHttpBinding();
EndpointAddress myEndpoint = new EndpointAddress(_endpointConfigurationName);
using (ChannelFactory<IService> factory = new ChannelFactory< IService >(myBinding))
{
factory.Open();
       object[] parameters = new object[1];
       parameters[0] = _documentId;
       IService proxy = factory.CreateChannel(myEndpoint);
       if (proxy == null)
       	return;
       MethodInfo mi = proxy.GetType().GetMethod("DoExecute");
       if (mi == null)
       	return;
       var serviceResult = mi.Invoke(proxy, parameters); 
       factory.Close();
}

“Web.config” file of called service as follows,

C#

<services>
      <service name="IService.Service">
        <endpoint address="ws" binding="wsHttpBinding" name="wsHttpBinding_IFTPUploaderService" contract="Service.IService ">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
       <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
       <host>
        	<baseAddresses>
            		<add baseAddress="http://localhost:8752/Service/" />
          	</baseAddresses>
       </host>
</service>
</services>

factory and proxy is working fine but when “Invoke” method is executed it gives error as follows

There was no endpoint listening at http://localhost:81/IService.Service.svc?wsdl that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details

Server stack trace:

C#

at System.ServiceModel.Channels.HttpChannelUtilities.ProcessGetResponseWebException(WebException webException, HttpWebRequest request, HttpAbortReason abortReason)
   at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
   at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Exception rethrown at [0]:

C#

at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at SchedulerService.Service.IService.DoExecute(String id)

[Edit - CHill60]
OP has already tried this solution Error: There was no endpoint listening at...[^]. I have deleted my solution

Posted 29-May-13 2:57am

Sagar Kute

Updated 29-May-13 3:25am

CHill60

v3

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Sagar Kute · Accepted Answer · 2013-05-29T22:57:00

Thanks all

I changed some code given bellow check out and now its working fine,...

C#

WSHttpBinding myBinding = new WSHttpBinding();
EndpointAddress myEndpoint = new EndpointAddress(_URL);
using (ChannelFactory<iservice> factory = new ChannelFactory<iservice>(myBinding))
{
	factory.Open();
	object[] parameters = new object[1];
	parameters[0] = _id;
	ISchedule proxy = factory.CreateChannel(myEndpoint);
	if (proxy == null)
		return;
	MethodInfo mi = proxy.GetType().GetMethod("DoExecute");
	if (mi == null)
		return;
	var serviceResult = mi.Invoke(proxy, parameters);
	factory.Close();
}

you can ether execute by directly proxy, but it restrict you to particular method only as,

C#

using ((IDisposable)proxy)
{
    proxy.DoExecute(_id);
}