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.NET下对Web.config与App.Config的增删改操作

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.NET 2.0之后,Web.config和App.Config的增删改操作是相当的方便,使用好了能达到事半功倍的效果。下面是一个App.Config,其实就是一个XML文件

<?xml version="1.0" encoding="utf-8" ?>  
<configuration>  
  <appSettings>  
    <add key="status" value="0" />  
    <add key="checkPath" value="C:\" />  
  </appSettings>  
</configuration>  

看相关的操作:
Web.config(ASP.NET):

//读
System.Web.Configuration.WebConfigurationManager.AppSettings[“y”];
//增
Configuration config = WebConfigurationManager.OpenWebConfiguration(null); 
AppSettingsSection app = config.AppSettings; 
app.Settings.Add("x", "this is X"); 
config.Save(ConfigurationSaveMode.Modified); 
//改
Configuration config = WebConfigurationManager.OpenWebConfiguration(null); 
AppSettingsSection app = config.AppSettings; 
//app.Settings.Add("x", "this is X"); 
app.Settings["x"].Value = "this is not Y"; 
config.Save(ConfigurationSaveMode.Modified); 
//删
Configuration config = WebConfigurationManager.OpenWebConfiguration(null); 
AppSettingsSection app = config.AppSettings; 
app.Settings.Remove("x"); 
config.Save(ConfigurationSaveMode.Modified); 
//ConfigurationManager.RefreshSection("appSettings"); 

App.config(WINFORM):

//读
System.Configuration.ConfigurationManager.AppSettings[“y”];
//增
Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); 
AppSettingsSection app = config.AppSettings; 
app.Settings.Add("x", "this is X"); 
config.Save(ConfigurationSaveMode.Modified); 
//改
Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); 
AppSettingsSection app = config.AppSettings; 
//app.Settings.Add("x", "this is X"); 
app.Settings["x"].Value = "this is not Y"; 
config.Save(ConfigurationSaveMode.Modified); 
//删
Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); 
AppSettingsSection app = config.AppSettings; 
app.Settings.Remove("x"); 
config.Save(ConfigurationSaveMode.Modified);
//ConfigurationManager.RefreshSection("appSettings"); 


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