Where are runtime settings?

[IanBr]

In the ide I can open, change, save default settings in the solution explorer but I can't see the settings saved by the program (Windows Forms app) when run from the ide. Where are they?
I create a setting (in Properties.Settings.Default) via the ide, then run the application and it changes that setting and saves the updated value, then I again look at the settings via the ide but all I see are the originally created values not the updated ones. The values are definitely being updated by the app because if I again run the app and get it to display the value without changing it I see the updated one.
I can only conclude that when it runs the app is using a different settings file (which somehow gets created from the ide version), it's pretty weird and I certainly don't understand it.
Can someone explain for me?
Many thanks.

 

[Skydiver]

It pays to read the documentation:

Application Settings Overview - Windows Forms .NET Framework

Learn about the Application Settings feature of Windows Forms, for example how to create and store settings data on behalf of your application and your users.

docs.microsoft.com

LocalFileSettingsProvider Class (System.Configuration)

Provides persistence for application settings classes.

docs.microsoft.com

Application-scoped settings and the default user-scoped settings are stored in a file named application.exe.config, which is created in the same directory as the executable file. Application configuration settings are read-only. Specific user data is stored in a file named user.config, stored under the user's home directory. If roaming profiles are enabled, two versions of the user configuration file could exist. In such a case, the entries in the roaming version take precedence over duplicated entries in the local user configuration file.