How to Add new Elements to Existing Xml Documents?

    How to add new Element to existing xml document?

           XmlDocument xmldoc = new XmlDocument();

           xmldoc.Load("C:\\jobs.xml");   // Loading xml file to memory

          

           XmlElement newjob = xmldoc.CreateElement("jobs"); // parent

           XmlElement jobid = xmldoc.CreateElement("job_ids");

           jobid.InnerText = txtJobid.Text;

           XmlElement jobname = xmldoc.CreateElement("job_desc");

           jobname.InnerText = txtJobdesc.Text;

           XmlElement minsal = xmldoc.CreateElement("min_lvl");

           minsal.InnerText = txtminlvl.Text;

           XmlElement maxsal = xmldoc.CreateElement("max_lvl");

           maxsal.InnerText = txtmaxlvl.Text;

           newjob.AppendChild(jobid);

           newjob.AppendChild(jobname);

           newjob.AppendChild(minsal);

           newjob.AppendChild(maxsal);

           xmldoc.DocumentElement.AppendChild(newjob);

           Label1.Text = "dadasdlfkjaskld";

           xmldoc.Save("C:\\jobs.xml");     // the the xml file to disk