2014-7-28-加载、读取、保存xml

#region 保存指定节点值

        private bool SaveRegCode(string regCode, string key)

        {

            try

            {

                XmlDocument xmlDoc = new XmlDocument();

                xmlDoc.Load(Application.StartupPath + "/StoreManageV3.Main.exe.config");

                XmlNode connNode = xmlDoc.SelectSingleNode("/configuration/appSettings/add[@key='" + key + "']");

 

                connNode.Attributes["value"].Value = regCode;

                xmlDoc.Save(Application.StartupPath + "/StoreManageV3.Main.exe.config");

                return true;

            }

            catch

            {

                return false;

            }

        }

        #endregion