[closed] my sparql query with prefix doesnot return data or error in dotnetrdf but works in protege

@jasmine: As @Rob Vesse has mentioned in your previous post regarding the same question Problem with query in dotNetRDF, you need to be more specific with your query as to what exactly do you want and what are the queries that are working?

You can also refer to the discussion made on Executing SPARQL Query on an Ontology developed by Protege 3.4.8 using dotNetRDF. That was from where I started my successful executions, all thanks to @Rob Vesse

P.S. Rather than just copying the same example, try it out with a simple query of your own that successfully runs on Protege and check out if the result is being displayed.

@jasmine: Try this:

public partial class Form1 : Form
{
    TripleStore store = new TripleStore();

    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        DialogResult dresult = openFileDialog1.ShowDialog(); // Show the dialog.
        if (dresult == DialogResult.OK) // Test result.
        {
            string file = openFileDialog1.FileName;
            try
            {
                //Load in our ontology we created in protege
                store.LoadFromFile(file);
            }
            catch (IOException)
            {
            }
        }
    }

    private void btnExecuteQuery_Click(object sender, EventArgs e)
    {
        String queryString = txtEnterQuery.Text;
        Object results = store.ExecuteQuery(queryString);
        if (results is SparqlResultSet)
        {
            //Print out the Results
            SparqlResultSet rset = (SparqlResultSet)results;
            foreach (SparqlResult r in rset)
            {
                foreach (String var in r.Variables)
                {
                    if (r.HasValue(var) && r[var] != null)
                    {
                        INode n = r[var];
                        String output;
                        switch (n.NodeType)
                        {
                            case NodeType.Literal:
                                //For literals you only want the lexical value only so need to cast to
                                //literal and access the Value property
                                output = ((ILiteralNode)n).Value;
                                //Console.Write(var.ToString() + ": " + output);
                                richTxtAnswer.Text += var.ToString() + ": " + output;
                                break;
                            case NodeType.Uri:
                                Uri u = ((IUriNode)n).Uri;
                                if (!u.Fragment.Equals(String.Empty))
                                //u.Fragment is the fragment ID, the #blah part of the URI
                                {
                                    output = u.Fragment.Substring(1);
                                }
                                else
                                {
                                    output = u.AbsoluteUri;
                                }
                                richTxtAnswer.Text += var.ToString() + ": " + output;
                                break;
                            default:
                                //For any other node we just want the string form so
                                //ToString() is sufficient
                                output = n.ToString();
                                richTxtAnswer.Text += var.ToString() + ": " + output;
                                break;
                        }
                    }
                    richTxtAnswer.Text += "\n";
                }
                richTxtAnswer.Text += "\n";
            }
        }
    }

Btw here is one such simple query that I executed:

PREFIX pre: <http://www.owl-ontologies.com/LRBrain_Simple.owl#> SELECT ?name ?Characteristics ?Behaviour WHERE { ?Person pre:hasCharacteristics ?Characteristics. ?Person pre:name ?name. ?Characteristics pre:showsBehaviour ?Behaviour } ORDER BY ?name