简单实现自定义配置节1

       在程序中经常要使用自定义配置节来存储一些信息，下面是一个只读简单实现：

using  System;
using  System.Collections.Generic;
using  System.Text;
using  System.Configuration;

namespace  SmsWinForm
{

     public   class  SectionHandler : System.Configuration.IConfigurationSectionHandler
    {
         public   object  Create( object  parent,  object  configContext, System.Xml.XmlNode section)
        {
             return   new  Config(section);
        }
    }

     class  Config
    {
         private  System.Xml.XmlNode m_section;

         public  Config(System.Xml.XmlNode node)
        {
            m_section  =  node;
        }

         static   private  Config configSection
        {
             get
            {
                Config config  =  (Config)System.Configuration.ConfigurationManager.GetSection( " SmsWinForm " );
                 if  (config  ==   null )
                {
                     throw   new  ApplicationException( " Failed to get configuration from App.config. " );
                }
                 return  config;
            }
        }

         public   string   this [ string  key]
        {
             get
            {
                System.Xml.XmlNode node  =  m_section.SelectSingleNode(key);
                 if  (node  !=   null )
                     return  node.InnerText;
                 else
                     return   null ;
            }
        }

         static   public   string  BoardID
        {
             get
            {
                 return  configSection[ " boardid " ];
            }
        }

         static   public   string  CategoryID
        {
             get
            {
                 return  configSection[ " categoryid " ];
            }
        }

    }
}

App.config中

<? xml version="1.0" encoding="utf-8"  ?>
< configuration >
   < configSections >
     < section  name ="SmsWinForm"  type ="SmsWinForm.SectionHandler,ConsoleTest1" />
   </ configSections >
   < SmsWinForm >
     < categoryid > CMPP </ categoryid >
     < boardid > 32 </ boardid >
   </ SmsWinForm >
</ configuration >

1         private static void TestSimpleConfigdata()
2         {
3            Console.WriteLine(SmsWinForm.Config.CategoryID);
4            Console.Read();
5         }

Tip:如果只是用于只读情况下，那这个方法足够了，并且大部分情况我们很少更新配置节。

http://wintersun.cnblogs.com