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POException calling Silverlight enabled WCF service when using other assemblies
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  1. POException calling Silverlight enabled WCF service when using other assemblies
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    copied!<p><strong>General description</strong></p> <p>I am calling a Silverlight enabled WCF service from a Silverlight application. My service queries a database (SQL Server) and returns values from there. The problem is that the service uses other libraries that do the dirty database work and I get this exception when trying to use the service:</p> <p><strong>Exception</strong></p> <pre><code>System.ServiceModel.CommunicationException was unhandled by user code Message="An error occurred while trying to make a request to URI 'mysite/myservice.svc'. This could be due to attempting to access a service in a cross-domain way without a proper cross-domain policy in place, or a policy that is unsuitable for SOAP services. You may need to contact the owner of the service to publish a cross-domain policy file and to ensure it allows SOAP-related HTTP headers to be sent. This error may also be caused by using internal types in the web service proxy without using the InternalsVisibleToAttribute attribute. Please see the inner exception for more details." 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 ODP_Silverlight.ODP.WCFServices.PropertySetWcfServiceClient.PropertySetWcfServiceClientChannel.EndGetPropertySet(IAsyncResult result) at ODP_Silverlight.ODP.WCFServices.PropertySetWcfServiceClient.ODP_Silverlight.ODP.WCFServices.PropertySetWcfService.EndGetPropertySet(IAsyncResult result) at ODP_Silverlight.ODP.WCFServices.PropertySetWcfServiceClient.OnEndGetPropertySet(IAsyncResult result) at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result) InnerException: System.Security.SecurityException Message="" StackTrace: at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state) at System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult) at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result) InnerException: System.Security.SecurityException Message="Security error." StackTrace: at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult) at System.Net.Browser.BrowserHttpWebRequest.&lt;&gt;c__DisplayClass5.&lt;EndGetResponse&gt;b__4(Object sendState) at System.Net.Browser.AsyncHelper.&lt;&gt;c__DisplayClass2.&lt;BeginOnUI&gt;b__0(Object sendState) InnerException: </code></pre> <p><strong>More info</strong></p> <p>If I remove the "<code>using mylibs</code>" from the <code>using</code> statements and just return some simple List&#60;int&gt; with a few numbers instead, the service works just fine.</p> <p>Any insights anyone?</p>
 

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