XML Read 2

using System.Windows.Forms;
using System.Xml;
using System.Net;
using System.IO;


XmlDocument objXmlDocument = new XmlDocument();
                TextReader trs = new StreamReader(Application.StartupPath + "\\LastPostID.txt");

                string strLastInsertedId = trs.ReadLine();
                trs.Close();
                TextWriter tsw1 = new StreamWriter(Application.StartupPath + "\\Status.txt",true);
                tsw1.WriteLine(strLastInsertedId + " : " + DateTime.Now.ToString());
                tsw1.Close();

                label3.Text = strLastInsertedId;
                label3.Refresh();

                //clsSettings.GetSettingValue((int)clsCommon.Settings.LastPostId);

                string strXML = GetXML(strLastInsertedId);
                objXmlDocument.LoadXml(strXML);

                XmlNodeList objXmlNodeList = objXmlDocument.GetElementsByTagName("listing");

                if (objXmlNodeList != null)
                {
                    string strId = string.Empty;
                    string strTitle = string.Empty;
                    string strupdatedDate = string.Empty;
                    string strPrice = string.Empty;
                    string strPType = string.Empty;
                    string strURL = string.Empty;
                    string strCity = string.Empty;
                    string strState = string.Empty;

                    for (int i = 0; i < objXmlNodeList.Count; i++)
                    {
                        strId = string.Empty;
                        strTitle = string.Empty;
                        strupdatedDate = string.Empty;
                        strPrice = string.Empty;
                        strPType = string.Empty;
                        strURL = string.Empty;
                        strCity = string.Empty;
                        strState = string.Empty;

                        if (objXmlNodeList[i]["title"] != null)
                        {
                            strTitle = objXmlNodeList[i]["title"].InnerText.ToString();
                        }

           }

        }


 private string GetXML(string strStartFrom)
        {
            try
            {
                string strurl = "http://scrape100.iscrape.org/export/xml/?id=" + strStartFrom;
                HttpWebRequest objHttpWebRequest = (HttpWebRequest)WebRequest.Create(strurl);
                objHttpWebRequest.Method = "Get";
                objHttpWebRequest.ContentLength = 0;
                HttpWebResponse objHttpWebResponse = (HttpWebResponse)objHttpWebRequest.GetResponse();
                Stream objResponseStream = objHttpWebResponse.GetResponseStream();
                Encoding objEncoding = Encoding.GetEncoding("utf-8");
                StreamReader objStreamReader = new StreamReader(objResponseStream, objEncoding);
                string strHtmlOutput = objStreamReader.ReadToEnd();
                return strHtmlOutput;
            }
            catch (Exception ex)
            {
                return null;
            }
        }