.net 读取非标准配置文件

代码如下：

public static string Config(string key) 

       { 

           ExeConfigurationFileMap file = new ExeConfigurationFileMap(); 

           file.ExeConfigFilename = @"Providers\\Provider.config"; 

           Configuration config = ConfigurationManager.OpenMappedExeConfiguration(file, ConfigurationUserLevel.None); 

           AppSettingsSection appsection = (AppSettingsSection)config.GetSection("appSettings"); 

           return appsection.Settings[key].Value; 

       } 

配置文件目录结构：

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

<configuration> 

    <appSettings> 

        <add key="ConnectionString" value="Server=(local);Database=DB;User Id=sa;Password=123" /> 

    </appSettings> 

</configuration> 

调用：

//里面的参数为配置文件的key 

string strConn=Config("ConnectionString"); 

摘自 tommy的专栏