ExampleConfigurationSectionHandler

ExampleConfigurationSectionHandler.cs

 using System;
 using System.Collections.Generic;
 using System.Configuration;
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices.ComTypes;
 using System.Text;
 using System.Threading.Tasks;
 using System.Xml;
 using System.Xml.Serialization;

 namespace SampleConfigSectionHandle
 {
     public sealed class ExampleConfigurationSectionHandler : IConfigurationSectionHandler
     {
         public object Create(object parent, object configContext, XmlNode section)
         {
             var xmlSerializer = new XmlSerializer(typeof(UserInfo));

             using (var stream = new MemoryStream(Encoding.Default.GetBytes(section.InnerXml)))
             {
                 var xmlNode = XmlReader.Create(stream);

                 return xmlSerializer.Deserialize(xmlNode);
             }
         }
     }

     public class UserInfo
     {
         public string UserName { get; set; }

         public string UserPwd { get; set; }
     }
 }

App.config

 <?xml version="1.0" encoding="utf-8" ?>
 <configuration>

   <configSections>

     <!--示例配置节-->
     <section name="example" type="SampleConfigSectionHandle.ExampleConfigurationSectionHandler,SampleConfigSectionHandle"/>

   </configSections>

   <startup>
     <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
   </startup>

   <!--配置节实例-->
   <example>

     <UserInfo>
       <UserName>WangYa</UserName>
       <UserPwd>123456</UserPwd>
     </UserInfo>

   </example>

 </configuration>

Program.cs

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SampleConfigSectionHandle
{
    class Program
    {
        static void Main(string[] args)
        {
            var config = ConfigurationManager.GetSection("example") as UserInfo;

            if (config != null)
            {
                Console.WriteLine(config.UserName);
                Console.WriteLine(config.UserPwd);
            }

            Console.Read();
        }
    }
}