配置文件configSections节点使用实例      。

configSections为自定义节点，增加应用程序可移植性，用于配置文件上传路径，再深入应用可定义工厂方法需要加载创建的类。

1.配置configSections节点

<configSections>
    <section name ="MyName" type="LearningConfiguration.NameSectionHandler"/>
</configSections>
<MyName>
    <Add key="lu" name="lulu"></Add>
    <Add key="lu2" name="66"></Add>
</MyName>

2.定义NameSectionHandler类实现IConfigurationSectionHandler接口

namespace LearningConfiguration
{
    public class NameSectionHandler : IConfigurationSectionHandler
    {
        #region 隐式实现接口
        public object Create(object parent, object configContext, System.Xml.XmlNode section)
        {
            Dictionary<string, string> names = new Dictionary<string, string>();
            string key = string.Empty;
            string name = string.Empty;

            //获取配置文件中自定义节点值
            foreach (XmlNode childNode in section.ChildNodes)
            {
                if (childNode.Attributes["key"] != null)
                {
                    key = childNode.Attributes["key"].Value;

                    if (childNode.Attributes["name"] != null)
                    {
                        name = childNode.Attributes["name"].Value;
                    }
                    else
                    {
                        name = string.Empty;
                    }

                    names.Add(key, name);
                }
            }

            return names;
        }
        #endregion
    }
}

3.调用

protected void Page_Load(object sender, EventArgs e)
{
    Dictionary<string, string> names = ConfigurationManager.GetSection("MyName") as Dictionary<string, string>;
    if (names != null)
    {
            //输出：lulu66
        foreach (string key in names.Keys)
        {
            Response.Write(names[key]);
        }
    }
}