Maintaining data after migration from UWP to Desktop

[dajbych]

My UWP app is distributed through the Microsoft Store and its local data are stored in the C:\Users\<username>\AppData\Local\Packages\<package family name>\ folder. UWP will not hot have .NET 6 support. It is recommended to migrate to WinUI 3/Windows App SDK/Win32 (Desktop). When the migrated app is distributed via Microsoft Store as a higher version of a previous UWP app, will it still have access to this directory with the same data?

[andrewleader]

Hi @dajbych, in short - yes, your app will still have access to the same data and directory and be able to seamlessly upgrade data from UWP to WinUI 3 Desktop.

When you migrate to WinUI 3, you will want to make sure you still build a packaged MSIX app, and make sure that the identity of your app is the same (identity is specified in the manifest). As long as you have the same identity, your WinUI 3 version of your app will be able to access the exact same data your UWP app used to - simply keep using the same ApplicationData APIs!