What is the best way to go about reading and writing simple configuration data like we used to use App.config and Web.config available thr
In addition to the technical answers above its important to understand why there is no config file for these apps.
WinRT/Windows store apps are client applications so unlike your ASP.NET applications that run on the server and require admin configuration changes, end users are not expected to tinker with these changes (SQL connection, timeouts, appSettings you name it) hence there is no need for such a config file for these apps,
Hope it makes sense