C# 读取XML属性 更新到SharePoint 2013 中

 public void UpdateSharePointListFromXML()
        {
            string filename = Server.MapPath("XMLFile1.xml");
            XmlDocument xmldoc = new XmlDocument();
            xmldoc.Load(filename);
            XmlNodeList topM = xmldoc.DocumentElement.ChildNodes;
            foreach (XmlElement element in topM)
            {
                if (element.Name == "ISA_Info")
                {

                    Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(delegate()
                    {
                        SPSite site = new SPSite("http://jack-7716f30e37:2012");
                        using (SPWeb web = site.OpenWeb())
                        {
                            web.AllowUnsafeUpdates = true;
                            site.AllowUnsafeUpdates = true;
                            SPList list = web.Lists["MyList"];
                            SPListItem Item = list.Items.Add();
                            Item["field"] = element.Attributes[0].Value.ToString();
                            Item["Value"] = element.Attributes[1].Value.ToString();
                            Item.Update();
                            list.Update();
                        }
                    });

                }
            }
        }

<?xml version="1.0" encoding="utf-8" ?>
<ISA xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <ISA_Info field="ISA.FullPath" value="\\nas\apps\test\PDF\AKF000210460100051.pdf"/>
  <ISA_Info field="ISA.Customer" value="Test Customer"/>
  <ISA_Info field="ISA.Type" value="AKF"/>
  <ISA_Info field="Meta.Categorie" value="INS"/>
  <ISA_Info field="Meta.Doc.Date" value="08/06/2010"/>
  <ISA_Info field="Meta.FileNumber" value="021046"/>
  <ISA_Info field="Meta.Year" value="2010"/>
  <ISA_Info field="Meta.Description" value=" Installatie P360 scanner"/>
</ISA>