c#讀取另外的設定檔

在使用自訂configsection時，涉及到讀取非預設的web.config 或者app.config。會用到下面的類。

    public sealed class ImportConfig    {        private static string GetAssemblyPath()        {            string assemblypath = Assembly.GetExecutingAssembly().CodeBase;            assemblypath = assemblypath.Substring(8, assemblypath.Length - 8);            assemblypath = Path.GetDirectoryName(assemblypath);            return assemblypath;        }        static ImportConfig()        {                 var path =GetAssemblyPath()+ @"\config\import.config";                var file = new FileInfo(path);                if (file.Exists)                {                    var configFileMap = new ExeConfigurationFileMap { ExeConfigFilename = path };                    _config = (ImportSection)ConfigurationManager.OpenMappedExeConfiguration(configFileMap, ConfigurationUserLevel.None).GetSection("import");                }                else                {                    throw new FileNotFoundException(path);                }                   }        private static ImportSection _config;        public static ImportSection Config        {            get            {               return  _config;            }        }    }