How to use .NET configuration files (app.config, settings.settings) to save and restore all application data?

Question

Although there are a lot of posts about .net config files, I believe that my requirements do not allow for any of the solutions proposed (or I don\'t understand the process

Answer 1

Since you app.config file is a simple xml file you can load it into an XDocument:

string path = AppDomain.CurrentDomain.SetupInformation.ConfigurationFile;
XDocument doc = XDocument.Load(path);
//Do your modifications to section x
doc.Save(path);
ConfigurationManager.RefreshSection("x");

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I corrected the XDocument.Load() code according to @Pat's comment