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6.4

Silverlight WCF Web Service call returns "The remote server returned an error: NotFound"

Asked by sunderlands in Web Services and WCF, WPF and Silverlight, .NET

Tags: C#, Silverlight 2.0 (XAML)

Hi ,

I have a webservice with 2 methods - one method that takes one paramter and returns an ObervableCollection<>, and another that takes the same ObervableCollection<> with modified values to be submitted to the database, and returns bool.

The 1st call to retrieve the data works fine, the data is bound to a DataGrid, values are changed no problem etc... When I call the 2nd method and pass the ObervableCollection<> back, the web service throws a CommunicationException. Any ideas why this would happen?

Stack Trace:

System.ServiceModel.CommunicationException was unhandled by user code
Message="The remote server returned an error: NotFound"
StackTrace:
at System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult result)
at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
at System.ServiceModel.ClientBase`1.ChannelBase`1.EndInvoke(String methodName, Object[] args, IAsyncResult result)
at MarketBuilder.WebService.WebServiceClient.WebServiceClientChannel.EndCommitChanges(IAsyncResult result)
at MarketBuilder.WebService.WebServiceClient.MarketBuilder.WebService.WebService.EndCommitChanges(IAsyncResult result)
at MarketBuilder.WebService.WebServiceClient.OnEndCommitChanges(IAsyncResult result)
at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result)
InnerException: System.Net.WebException
Message="The remote server returned an error: NotFound"
StackTrace:
at System.Net.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
at System.Net.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result)
InnerException: System.Net.WebException
Message="The remote server returned an error: NotFound"
StackTrace:
at System.Net.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
at System.Net.BrowserHttpWebRequest.<>c__DisplayClass5.<EndGetResponse>b__4(Object sendState)
at System.Net.AsyncHelper.<>c__DisplayClass2.<BeginOnUI>b__0(Object sendState)
InnerException:

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Silverlight WCF Web Service call returns "The remote server returned an error: NotFound"

Asked by sunderlands in Web Services and WCF, WPF and Silverlight, .NET

Tags: C#, Silverlight 2.0 (XAML)

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