how to edit values of app.config file ?

I have two windows application project says "A" and "B" in same solution. I already sets all key values in app.config file of "A" . Now I got requirement that I have to make one exe says winform contaings textboxes where I have to set all key values for app.config file of "A" . this exe is my project "B". now i tried many ways to get access of config file of project A . but i failed. I also tried with "ConfigurationManager.OpenExeConfiguration(path)" but here needs file path which i could not put hardcoded. I am restricted to put any hardcoded paths.

note: I created setup project and added both projects output so that both projects exes and app.config of "A" will be in same folder so that its easy to locate file.

Is there any way to achieve this.
Please suggest me ,
Thanks to everyone.

1 Reply

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Amit Choudhary11y ago
The easiest and convenient way would be to split the configuration file of A so that appsetting can be stored in a separate file. Then use the same file in both configuration.
E.g. after splitting your configuration files would like below:
App.config of 'A':

commonconfigsettings.config:

App.config of 'B':