.net 读取非标准配置文件的小例子

　　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;

　　}

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

　　<configuration>

　　<appSettings>

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

　　</appSettings>

　　</configuration>

　　//里面的参数为配置文件的key

　　string strConn=Config("ConnectionString");