AutoSuggestBox: PlaceholderText is not vertically centered anymore.

[peymanr34]

Describe the bug

There is a regression where PlaceholderText for the AutoSuggestBox is not properly aligned anymore. I noticed this while updating Microsoft.WindowsAppSDK in a small project from 1.5.240607001 to 1.6.250108002 (latest).

Steps to reproduce the bug

1. Create a new Black App, Packaged (WinUI 3 in Desktop) project.

At the time of writing, the latest package version for Microsoft.WindowsAppSDK would be:

<PackageReference Include="Microsoft.WindowsAppSDK" Version="1.6.250108002" />

2. Modify the MainWindow.xaml:

<Grid Margin="5">
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto" />
        <RowDefinition Height="*" />
    </Grid.RowDefinitions>
    <AutoSuggestBox
        Margin="5"
        PlaceholderText="Search for something here..."
        QueryIcon="Find" />
</Grid>

3. You can see the PlaceholderText is not centered vertically:

But if you write something, the actual text will be aligned as expected:

Expected behavior

If you change the Microsoft.WindowsAppSDK package version to 1.5, for example:

<PackageReference Include="Microsoft.WindowsAppSDK" Version="1.5.240607001" />

You can see the PlaceholderText is aligned as expected:

Screenshots

No response

NuGet package version

None

Windows version

No response

Additional context

No response

[github-actions]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one. Thank you!

Open similar issues:

• TextBox PlaceholderText is no longer centered correctly in v1.6.0 (#10014), similarity score: 0.88

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• [AutoSuggestBox] PlaceholderText does not vertically align to the center (#5957), similarity score: 0.83
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