[dotNetRDF-Develop] Querying sparql endpoint via Windows Phone 7 dotnetrdf

[Sid J. <si...@ya...>]

Hello,

I am trying to create an application in Windows Phone 7 that will query a remote SPARQL endpoint (such as DBpedia).
However, when trying to run the following code, the emulator freezes without giving any error message.

                private void button1_Click(object sender, RoutedEventArgs e)
        {
            SparqlRemoteEndpoint endpoint = new SparqlRemoteEndpoint(new Uri("http://dbpedia.org/sparql"), "http://dbpedia.org");

            //Make a SELECT query against the Endpoint
            SparqlResultSet results = endpoint.QueryWithResultSet("SELECT DISTINCT ?Concept WHERE {[] a ?

            foreach (SparqlResult result in results)
            {
                textBox1.Text = result.ToString();
            }
        }

It seems that the following line is causing the problem:

SparqlResultSet results = endpoint.QueryWithResultSet("SELECT DISTINCT ?Concept WHERE {[] a ?

Any reason why it is doing this.?

I currently have the following references in my project:
- HtmlAgilityPack.WindowsPhone.dll
- dotNetRDF.WindowsPhone.dll
- Newtonsoft.Json.Silverlight.dll

Thanks,
Sid