iOS. Auto-sized Grid row containing ScrollView sizes itself to the full height requested by the ScrollView content.

[Keflon]

Description

iOS only.
Given the following xaml:

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="MauiGridScrollBug.MainPage">

    <Grid RowDefinitions="*,*">
        <ScrollView Grid.Row="0">
            <Button HeightRequest="600" Text="Top Button" Margin="5"/>
        </ScrollView>
        <ScrollView Grid.Row="1">
            <Button HeightRequest="600" Text="Bottom Button" Margin="5"/>
        </ScrollView>
    </Grid>
</ContentPage>

Expected result is a ContentPage with 2 equally sized Grid rows.

Actual result

On iOS, the grid rows expand to the size of their ScrollView Content.

Steps to Reproduce

1. File->New MAUI app
2. Replace the MainPage content with this:

<Grid RowDefinitions="*,*">
    <ScrollView Grid.Row="0">
        <Button HeightRequest="600" Text="Top Button" Margin="5"/>
    </ScrollView>
    <ScrollView Grid.Row="1">
        <Button HeightRequest="600" Text="Bottom Button" Margin="5"/>
    </ScrollView>
</Grid>

3. Remove the click-handler in MainPage.xaml.cs

Run the app on iOS.

Link to public reproduction project repository

https://github.com/Keflon/MauiGridScrollBug

Version with bug

7.0 (current)

Last version that worked well

6.0.424

Affected platforms

iOS

Affected platform versions

iOS 16.4. Probably others.

Did you find any workaround?

Do not use 'Auto' in RowDefinitions.
Do not use '*' in RowDefinitions.

Note: This did work fine. I didn't notice the update that broke it but it was a recent one.

Relevant log output

No response

[rmarinho]

Hey @hartez does this look something that might be fixed recently ?

@Keflon on the workaround section you say "Do not use 'Auto' in RowDefinitions." but in the example your are using start (*).

[ghost]

We've added this issue to our backlog, and we will work to address it as time and resources allow. If you have any additional information or questions about this issue, please leave a comment. For additional info about issue management, please read our Triage Process.

[Keflon]

Hey @hartez does this look something that might be fixed recently ?

@Keflon on the workaround section you say "Do not use 'Auto' in RowDefinitions." but in the example your are using start (*).

Well spotted! I've updated it to "Do not use '*' in RowDefinitions."

[samhouts]

Duplicate of #15079