microsoft
FolderPicker: Missing PickMultipleFoldersAsync method
Describe the bug
Similar to the FileOpenPicker to select multiple files, there should be an option for the FolderPicker to allow multiple folders.
A possible use-case where this can be helpful is a photo management software in which the user can select the folders which he wants to add. Adding folders one-by-one can be tedious.
The Win32 APIs should allow this by using the FOS_ALLOWMULTISELECT flag that already is used in the FileOpenPicker: https://github.com/microsoft/WindowsAppSDK/blob/f3a179cc3fb28c2abbb6b39b08a3bbf0f790d549/dev/Interop/StoragePickers/FileOpenPicker.cpp#L149
Steps to reproduce the bug
var savePicker = new FolderPicker(appWindowId);
var result = await savePicker.PickMultipleFoldersAsync(); // does not exist
Expected behavior
No response
Screenshots
No response
NuGet package version
Windows App SDK 1.8.0: 1.8.250907003
Packaging type
Packaged (MSIX)
Windows version
Windows 11 version 24H2 LTSC (26100, June Update)
IDE
Visual Studio 2022
Additional context
No response
