So far I have been testing the application only in browser, where it all works fine. 

I have now tried to run it OOB (from within VisualStudio 2010). The application starts but then just hangs. I can see that it stops working the fist time it tries to get data from the Server. 

I have no idea of what to do to find the error. 

I have created a simple DevForce application that reads from the NorthwindIB Database and this one works fine out of browser. I then compared the properties of the the two solutions they are identical (Port 9009 etc.)

Can you give me some ideas about where to look next?

Thank you 

Markus Seeli

I managed to get an exception after a couple of minutes of waiting. (Sorry for the German, but it should be readable)

{IdeaBlade.EntityModel.EntityServerConnectionException: Die HTTP-Anforderung an "http://localhost:9009/EntityService.svc/sl" hat den zugeteilten Timeout überschritten. Die diesem Vorgang zugeteilte Zeit kann einen Anteil eines längeren Timeouts darstellen. ---> System.TimeoutException: Die HTTP-Anforderung an 

"http://localhost:9009/EntityService.svc/sl" hat den zugeteilten Timeout überschritten. Die diesem Vorgang zugeteilte Zeit kann einen Anteil eines längeren Timeouts darstellen. ---> System.Net.WebException ---> System.Net.WebException

   bei System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)

   bei System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClassa.<EndGetResponse>b__9(Object sendState)

   bei System.Net.Browser.AsyncHelper.<>c__DisplayClass4.<BeginOnUI>b__1(Object sendState)

   --- Ende der internen Ausnahmestapelüberwachung ---

   bei System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)

   bei System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)

   bei System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result)

   --- Ende der internen Ausnahmestapelüberwachung ---

   bei System.ServiceModel.Channels.Remoting.RealProxy.Invoke(Object[] args)

   bei proxy_2.EndGetEntityServerName(IAsyncResult )

   bei IdeaBlade.EntityModel.RemoteEntityServiceProxy.GetEntityServerName(String dataSourceExtension, String compositionContextName)

   bei IdeaBlade.EntityModel.RemoteEntityServerProxyBase.Connect(ConnectAction action)

   --- Ende der internen Ausnahmestapelüberwachung ---

   bei IdeaBlade.EntityModel.EntityManager.AsyncConnection_Completed(Object sender, AsyncEventArgs e)

   bei IdeaBlade.EntityModel.BaseOperation.BaseOnCompleted()

   bei IdeaBlade.EntityModel.BaseOperation.IdeaBlade.EntityModel.IHasAsyncEventArgs.OnCompleted()

   bei IdeaBlade.EntityModel.AsyncProcessor`1.<>c__DisplayClass2.<.ctor>b__0(TArgs args)

   bei IdeaBlade.EntityModel.AsyncProcessor`1.Signal()

   bei IdeaBlade.EntityModel.AsyncProcessor`1.<Execute>b__5(Object x)}

http://localhost:9009/EntityService.svc

I start the application, the oob-windows opens and is empty and stays empty.  - when i then click on the development server in the system tray and tell it to open in browser the application opens in a browser and works fine.

I am using Caliburn and Caliburn initializes the rootview after it has done the entire MEF initialization. I was trying to access my database before the rootview was set and somehow DevForce does not like this. 

This problem only shows up in OOB-Mode, within the browser the late init of the rootview is not a problem.

I solved the problem by showing a splash-screen before I access the db via DevForce. 

Thanks for the update mseeli,

 

At first we suspected it could be the OOB app hanging when trying to make a connection to a secure WCF, but I couldn't reproduce it here.

 

I was about to check if it had anything to do with SL5 Beta being installed on the machine, but you saved me that trip.

Silvio.