How to Write to a User.Config file through ConfigurationManager?

Question

I\'m trying to persist user settings to a configuration file using ConfigurationManager.

I want to scope these settings to the user only, because application changes

Answer 1

You need to set the SectionInformation.AllowExeDefinition value for the section:

 Configuration configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.PerUserRoaming);
UserSettings settings;
if ((settings = (UserSettings)configuration.Sections[GENERAL_USER_SETTINGS]) == null)
{
      settings = new UserSettings();
      settings.SectionInformation.AllowExeDefinition =   
                 ConfigurationAllowExeDefinition.MachineToLocalUser;
      configuration.Sections.Add(GENERAL_USER_SETTINGS, settings);
      configuration.Save();
}

The default value is ConfigurationAllowExeDefinition.MachineToApplication which allows only to place the section on machine.config and app.exe.config.