nodes in XML

[King Abadon]

 XmlDocument doc = new XmlDocument();
           doc.Load("contor.xml");
           XmlNodeList items = doc.SelectNodes(@"Aparate/Aparat/Pozitii/Pozitie");
           foreach (XmlNode node in items)
           {
               if (node.LocalName == "Pozitie")
               {

                  DataRow dr = dp.NewRow();
                   dr["Produs"] = node.ChildNodes[0].InnerXml;
                   dr["ContorInitial"] = node.ChildNodes[1].InnerXml;
                   dr["ContorFinal"] = node.ChildNodes[2].InnerXml;
                   dp.Rows.Add(dr);

               }
           }

i have a DataSet Dset and a DataTable dp
how i put in Dataset the data from DataTable?

now i want to put