Modifying Results Post Query in SharePoint 2010 CoreResults WebPart

One of the scenarios we encountered was to enhance the search results post Query

Fortunately Core Results WebPart has a provision to do so in its GetXPathNavigator method

Sorry for Pasting code as is ...Will post the formatted code snippet soon.. 

        protected override XPathNavigator GetXPathNavigator(string viewPath)

        {

           

            XmlDocument xDocument = new XmlDocument();

           

            try

            {

                QueryManager queryManager = SharedQueryManager.GetInstance(Page).QueryManager;

                xDocument = queryManager.GetResults(queryManager[0]);

                //Annotation Request

               

                CustomEnhancemer customEnhancerObject = MakeCalltoWCF.EnhancemyResults(xDocument);

                XmlNode xmlNodeSettings = xDocument.SelectSingleNode("All_Results/Result");

                XmlElement xmlNodeCustomSettings = xDocument.CreateElement(customEnhancerObject.Title);

                xmlNodeCustomSettings.SetAttribute(customEnhancerObject.Key1, customEnhancerObject.Value1);

                xmlNodeCustomSettings.InnerText = customEnhancerObject.InnerText;

                xmlNodeSettings.AppendChild(xmlNodeCustomSettings);

                //xDocument.Save()

                Trace.WriteLine(" - XmLDocument: " + xDocument.OuterXml);

                return xDocument.CreateNavigator();

            }

            catch (Exception ex)

            {

                Trace.WriteLine(System.DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss tt") + " -In Xpath Exception: " + ex.Message);

            }

            finally

            {

                CloseTraceFile();

            }

            return xDocument.CreateNavigator();

        

        }