I\'ve stored configuration of my application in the app.config, by Visual Studio I\'ve created some application key on the settings tab of project properties dialog, then I\
I did a some tests and here is result.
For auto generated class Settings the call of ConfigurationManager.RefreshSection("applicationSettings"); doesn't apply the modified values for members marked with ApplicationScopedSettingAttribute, it applies the changes to future calls via ConfigurationManager members (and not sure about UserScopedSettingAttribute).
Instead call Settings.Default.Reload();