七月的筆記本

private static string SafeConfigString(string configSection, string configKey, string defaultValue)
  {
   NameValueCollection configSettings = ConfigurationSettings.GetConfig(configSection) as NameValueCollection;
   if ( configSettings != null )
   {
    string configValue = configSettings[configKey] as string;
    if ( configValue != null )
    {
     return configValue;
    }
   }

   return defaultValue;
  }