WinUI3: ContentDialog is missing entrance animation

[Aurumaker72]

Describe the bug

ContentDialog doesn't have an entrance animation, but has an exiting animation.

This is a possible regression, as the Windows 11 Settings app does feature ContentDialogs with entrance animations (see Windows Insider Program tab)

Steps to reproduce the bug

1. Create a ContentDialog with an appropriate XamlRoot and arbitrary text
2. Await the ContentDialog's ShowAsync method
3. Observe the ContentDialog instantly appearing with no animation.

Expected behavior

The ContentDialog is expected to enter with an animation, similar to what is seen in Fluent.

Screenshots

ContentDialog.mp4

NuGet package version

WinUI 3 - Windows App SDK 1.3.1: 1.3.230502000

Windows version

Windows 11 (22H2): Build 22621

Additional context

No response

[IstvanKor]

Maybe missing style assignment to your ContentDialog.

ContentDialog dialog = new ContentDialog();
....
dialog.Style = Application.Current.Resources["DefaultContentDialogStyle"] as Style;
....
await dialog.ShowAsync();

[Aurumaker72]

Maybe missing style assignment to your ContentDialog.

This indeed fixes the issue.
It, on the other hand, begs the question: shouldn't this be assigned by default? The OOB experience is suboptimal enough as-is.

[Balkoth]

Seems strange to me that the default style is not applied automatically...
Is this a problem on other controls too?

[Aurumaker72]

Is this a problem on other controls too?

I haven't tested extensively, but all the basic controls (Button, CheckBox, ComboBox, RadioButton, Slider), collection controls, and navigation controls seem perfectly fine.

[zadjii-msft]

Looks like a dupe of #5573 to me.

[IstvanKor]

Looks like a dupe of #5573 to me.

#5573 is related to WinUi 2.X, this issue to WinUI 3.

[Aurumaker72]

Also, the proposed solution in #5573 does not work.

[Balkoth]

This is still an issue in Windows App SDK 1.3.2 (1.3.230602002)

[lolametro]

This is an issue again in Windows App SDK 1.6-experimental-1.

[lolametro]

This is still an issue in Windows App SDK 1.6-preview-1.

Just to clarify: the workaround above (#8476 (comment) assign the style) does not help here. In 1.5 it still worked fine.
Please fix this regression before releasing 1.6!

[lolametro]

This is still an issue in the released Windows App SDK 1.6. 🙂

[Balkoth]

Super strange that the exit animation is still there...

[kirwan-safesurfer]

This is still an issue in the released Windows App SDK 1.6. 🙂

Also wanted to corroborate that this is a 1.6 regression not present in Windows App SDK 1.5.6.

[lolametro]

This was fixed in Windows App SDK 1.6.1 (1.6.240923002) 🙏 Probably as a side effect of #8402.

At least when setting the style like described in #8476 (comment). Without setting the style, there's still no animation, but at least the workaround works again.