Drag&Drop does not work with within Elevated Apps

[davidegiacometti]

Describe the bug

Reorder a ListView with drag&drop make the app crash when running elevated.

Steps to reproduce the bug

1. Build https://github.com/davidegiacometti/listview-crash
2. Run as normal user
3. Reorder the ListView with drag&drop: working
4. Retry running elevated: Catastrophic failure (0x8000FFFF (E_UNEXPECTED))

Expected behavior

Working when running elavated

Screenshots

No response

NuGet package version

WinUI 3 - Windows App SDK 1.1.4

Windows app type

• [ ] UWP
• [X] Win32

Device form factor

Desktop

Windows version

Windows 10 (21H2): Build 19044

Additional context

No response

[bpulliam]

Does this issue repro after 1.2-preview2? There were significant Drag and Drop fixes in that release (all of which are in 1.2 stable).

[davidegiacometti]

Still persists with latest preview.

[MikeHillberg]

There's a limitation currently that drag/drop isn't supported in apps running elevated

https://learn.microsoft.com/en-us/windows/apps/windows-app-sdk/stable-channel#elevation

[davidegiacometti]

Hi @MikeHillberg Thank you! I totally missed that. Is there an official issue tracking this or should I leave this opened?

[MikeHillberg]

I don't see it in Issues either, let's leave this one. And thanks for opening

[bpulliam]

I changed the title for clarity.

[Petrarca181]

Was this solved? At current state 1.3, When I drag on elevated app I see ban icon.

[Scottj1s]

@Petrarca181 I think you're referring to dragging external content into the elevated app? That would present the ban icon, and is a behavior of Windows. You can repro by running Notepad as admin, and attempting to drag a txt file into.

[jaimecbernardo]

Starting to drag a Border in an elevated app also crashes due to it being unsupported. Why is this in the Freezer? It sounds like being able to drag UI elements is a useful part of many UIs.

[martgoodall]

I have exactly the same issue/senario with

                 <GridView x:Name="GridViewDevices"
                           CanDragItems="True"
                           SelectionMode="Extended"
                           ItemsSource="{x:Bind ItemsSourceDevices, Mode=TwoWay}"
                           Loaded="{x:Bind LoadedStartConnectedAnimationForBackNavigationDevices}"
                           ItemsPanel="{StaticResource ItemsPanelTemplateDevices}"
                           ItemTemplate="{StaticResource DataTemplateDevices}"
                           ContainerContentChanging="ContainerContentChangingDevices"/>

If i run code in visualstudio 2022 and start normally, all is good. If i start VS as admin, code segs on start of drag. Im running windowsappsdk 1.3.230724000 (everything else is latest too). debugger shows the event "catastrophic issue"

[ghord]

Any update on this? Application crashing in elevated mode when user initiates drag is horrible experience.

Simple functionality like CanReorderItems simply crashes the app...

[martgoodall]

sadly I just upgraded to [1.4.2 (1.4.231008000)] (https://learn.microsoft.com/en-us/windows/apps/windows-app-sdk/stable-channel#version-142-14231008000) and the bug still exists. code crashes with "catastrophic error" when Admin and drag and drop is performed, but works fine if not running as Admin

[ghord]

Yeah, for now it seems best solution is to to just implement in-app Drag&Drop yourself without using builtin apis.

[zhuxb711]

After more than one year development, WinUI team still not resolve this issue.

[shelllet]

After more than one year development, WinUI team still not resolve this issue.

This is a very critical bug. Don’t the Microsoft team think so?

[conioh]

Yeah, for now it seems best solution is to to just implement in-app Drag&Drop yourself without using builtin apis.

Sounds like the best solution is not to use Windows App SDK / WinUI 3 as long as that's the level of maturity and support.

[MetalMonkey-GSD]

Our current application ships with SDK 1.3.230724000 and many of our customers suddenly have the same issue. Our application needs elevated mode. Strangely it never happened before the latest Windows updates. We didn't even change anything in our application. Update: Same problem persists with SDK 1.4.231115000.

Same problem occurs even with the latest "WinUI 3 Gallery" app in elevated mode and latest SDK. It even sometimes crashes when switching between the pages.

This is a serious issue and must be addressed as soon as possible!

[martgoodall]

I support you MetalMonkey in saying this is a serious issue and is not being taken seriously. I don't even see an acknowledgement that the problem has been recreated, even though it takes 2 minutes to recreate. Could someone at Microsoft acknowledge that this is a serious issue and provide an update as to the plan to fix it? thx

[aquinn39]

This also seems to affect the TabView and it occurs in WinUI 2 with Xaml Islands as well - you can see in Notepad and Windows Terminal (https://github.com/microsoft/terminal/issues/6661) they've just disabled the ability to reorder tabs when the app is running as administrator, otherwise the app will crash when you try to reorder tabs - quite disappointing that they've had to resort to that to address this issue since now you can't reorder tabs when running as admin. And this is in the latest release version of Windows 11 as well.

[zhuxb711]

After two years, I have never seen WinUI team plan to fix this issue.

[yagdev]

After two years, I have never seen WinUI team plan to fix this issue.

A shame really as my app also depends on admin access for hardware sensors. For now I just added a safeguard where I disable CanDrag if Admin access is detected.

[stevenbrix]

i think the worst part about this is that it crashes even when dragging within your own application