1 xmlDocument = new XmlDocument();
2 xmlDocument.Load(xmlPath);
3 nsmgr = new XmlNamespaceManager(xmlDocument.NameTable);
4 XmlNode xmlNode = xmlDocument.SelectSingleNode(@"/AppItems/AppItem[@key=‘" + nodeName + "‘]", nsmgr);
5 XmlElement Xe = (XmlElement)xmlNode;
6 Xe.SetAttribute("value", nodeText);
7 xmlDocument.Save(xmlPath);