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:
App.config中
调用
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"];
}
}
}
}
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>
<configuration>
<configSections>
<section name="SmsWinForm" type="SmsWinForm.SectionHandler,ConsoleTest1"/>
</configSections>
<SmsWinForm>
<categoryid>CMPP</categoryid>
<boardid>32</boardid>
</SmsWinForm>
</configuration>
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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。
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