Why my changes of AppSettings in App.config is not taken into account in run-time? (Console Application)

Question

I have a console application which has its own App.config.

I need to change some values in section time to time.

My problem is, when I execute the exe withi

Answer 1

  Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
// change ConnectionString in App.Config for Entity FrameWork Object....
 //..... 
config.Save();

are you save config file?