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I'm developing a web part which is needed in WSS 3.0 showing some SilverLight graphics based on the view and its filtering. The view is chosen from the a web editor part and the needed web part properties are passed into SilverLight as params.

Inside the SilverLight App.xaml.cs I'm making a param array with all the web part properties.

App.strArgumentArray[1] holds the listname, App.strArgumentArray[8] holds the viewname, App.strArgumentArray[17] holds the webID and App.strArgumentArray[16] holds the views SchemaXml:

    //From inside the web part. The strListViewQueryXML is passed as a param to SL
    SPList oList = oWeb.Lists[SomeListName];
    SPView oListView = oList.Views[SomeListNameView];
    string strListViewQueryXML = oList.Views[oListView.Title].SchemaXml;         

Inside the MainPage.xaml.cs the SchemaXml is split up in XElements to be used in the GetListItemsAsync method.

            string query = App.strArgumentArray[16]; //Holds the SchemaXml

            using (StringReader sr = new StringReader(query))
            {
                using (XmlReader xtr = XmlReader.Create(sr))
                {
                    queryX = XElement.Load(xtr); 
                }
            }

            queryElement = queryX.Descendants("Query").First();
            viewElement = queryX.Descendants("ViewFields").First();
            optionElement = XElement.Parse(@"<QueryOptions/>"); //Empty QueryOption

            ListsSoapClient objLSC = new ListWebServices.ListsSoapClient("ListsSoap", App.serviceUri);
            objLSC.GetListItemsCompleted += new EventHandler<GetListItemsCompletedEventArgs>(objLSC_GetListItemsCompleted);                                                                    
            objLSC.GetListItemsAsync(App.strArgumentArray[1], App.strArgumentArray[8], queryElement, viewElement, null, optionElement, App.strArgumentArray[17]);

I feel like I've tried everything. The GetListItemAsync method works fine if I use it with only the first argument (string listName) but when I use the rest of the arguments in GetListItemAsync

    GetListItemAsync(string listName, string viewName, XElement query, XElement viewFields, string rowLimit, XElement queryOptions, string webID);

it keeps throwing a "System.ServiceModel.CommunicationException: The remote server returned an error: NotFound." The App.serviceUri has not changed so why this error? What am I doing wrong here?

Kind regards Michael Lau Wolfsberg

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Can you try to configure SharePoint WCF service to return the real error message like explained here (benday.com/2010/08/16/…)? It may help to resolve your real problem. –  Alex Boev Feb 21 '12 at 10:56
    
I've used the tool Microsoft Service Configuration Editor from the Microsoft Windows SDK to modify the includeExceptionDetailInFaults property of <serviceDebug> in the List.asmx service that I've added to my project. Still gives me same error. Am I doing something wrong? –  Wolfsberg Mar 1 '12 at 9:41
    
Here (stackoverflow.com/questions/814627/…) there's an advice to use a http traffic inspection tool like Fiddler to view the real message. Can you try it? –  Alex Boev Mar 1 '12 at 13:31
    
@Wolfsberg - How did you end up finding the error? –  xr280xr Sep 4 '13 at 19:30

1 Answer 1

up vote 0 down vote accepted

Okay I found the error. GetListItemAsync takes both string viewName and XElement query as arguments:

     GetListItemAsync(string listName, string viewName, XElement query, XElement viewFields, string rowLimit, XElement queryOptions, string webID);

If you intent to use a specific query then don't also specify the viewName. The view name has to be set to null like this :)

    objLSC.GetListItemsAsync(App.strArgumentArray[1], null, queryElement, viewElement, null, optionElement, App.strArgumentArray[17]);      

I will still try use the http traffic inspection tool since this would help me in future debugging situations :) Thanks alot for your answers Alex.

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