.config配置文件自定义节点读取问题

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="busiflus" type="System.Configuration.SingleTagSectionHandler"/>
    <section name="network" type="System.Configuration.DictionarySectionHandler"/>
    <section name="iplist" type="System.Configuration.DictionarySectionHandler"/>
  </configSections>
  <appSettings>
    <add key="hostname" value="this is my name"/>
  </appSettings>
  <busi conn="data source=;uid=;pwd=;database" time="10" check="true"/>
  <network time="2" check="true">
    <iplist ip="192.0168.0.68" check="true"/>
    <iplist ip="192.0168.0.69" check="true"/>
  </network>
</configuration>

如上App.config配置文件中的自定义参数，定义方法有问题吗？我应该如何读取各个节点的属性（包括每个子节点）。
请大家指教指教，最好能贴住代码示例。 --------------------编程问答-------------------- 关注中…… --------------------编程问答-------------------- app.config 及 web.config 中 ConnectionString 的加密与解密
Yuxiang 著于2007-9-10 19:50:41
在基于.NET的应用程序中，普通保存“连接字符串(ConnectionString)”配置是不恰当的！因为任何人都可以看到你的用户ID(用户名)，及其密码。在本文中，我希望能教你如何实现对它们进行加密及解密操作。
--------------------编程问答-------------------- 顶一个！ --------------------编程问答-------------------- 你需要自己写一个类实现 IConfigurationSectionHandler 接口。

public object Create(object parent, object configContext, System.Xml.XmlNode section)
        {
            DocManagerConfiguration config = new DocManagerConfiguration();
            NameValueCollection settings;
            try
            {
                NameValueSectionHandler baseHandler = new NameValueSectionHandler();
                settings = (NameValueCollection)baseHandler.Create(parent, configContext, section);
            }
            catch
            {
                settings = null;
            }

            if (settings != null)
            {
                Alogrim alogrimClass = new Alogrim(Alogrim.SymmProvEnum.RC2);
                alogrimClass.IV = "DocManager";
                alogrimClass.Key = "DocManager";
                if (bool.Parse(settings["IsEncrypt"]))
                {
                    if (ConfigurationManager.ConnectionStrings["DatabaseConnectionString"] != null)
                        config.DatabaseConnectionString = alogrimClass.Decrypting(ConfigurationManager.ConnectionStrings["DatabaseConnectionString"].ConnectionString);

                    config.DefaultNameSpace = alogrimClass.Decrypting((string)settings["DefaultNameSpace"]);
                    config.EnableDataAccessTrace = bool.Parse(alogrimClass.Decrypting((string)settings["EnableDataAccessTrace"]));
                    config.WebDAL = alogrimClass.Decrypting((string)settings["WebDAL"]);

                }
                else
                {
                    if (ConfigurationManager.ConnectionStrings["DatabaseConnectionString"] != null)
                        config.DatabaseConnectionString = ConfigurationManager.ConnectionStrings["DatabaseConnectionString"].ToString();
                    if (settings["DatabaseType"] != null)
                        config.DatabaseType = settings["DatabaseType"];
                    if (settings["EnableDataAccessTrace"] != null)
                        config.EnableDataAccessTrace = bool.Parse(settings["EnableDataAccessTrace"]);
                    if (settings["WebDAL"] != null)
                        config.WebDAL = settings["WebDAL"];

                }
            }
            return config;
        }
        #endregion
--------------------编程问答-------------------- 读出后转换成IDictionary就可以了

补充：.NET技术 ,  C#