Button Margin -20 don't shows it

[mzy666888]

Description

I use this code on ContentPage

<Grid RowDefinitions="*,*">
    <Border Background="Blue" ZIndex="8">
    </Border>
    <Border
        Grid.Row="1"
        Background="Red"
        ZIndex="10">
        <Button
            Margin="0,-20,0,0"
            Background="Yellow"
            HeightRequest="100"
            Text="Button"
            VerticalOptions="Start"
            WidthRequest="100">
        </Button>
    </Border>
</Grid>

it shows as this:

Steps to Reproduce

No response

Link to public reproduction project repository

No response

Version with bug

10.0.10

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

10.0.10

Affected platforms

Windows

Affected platform versions

No response

Did you find any workaround?

No response

Relevant log output

[lukewire129]

I believe the button should be clipped in this case since the second Border is placed in Grid.Row="1". When the Button has a negative margin that extends into Row 0's area, it should be clipped at the row boundary.
However, I understand this might be the current behavior in MAUI. Could you help me understand if this is the expected behavior or if there's something I'm missing?

[mzy666888]

as WPF ,use same code ,the button is visible on grid.

<Grid RowDefinitions="*,*">
    <Border Background="Blue">
    </Border>
    <Border Grid.Row="1" Background="Red">
        <Button
            Width="100"
            Height="60"
            Margin="0,-20,0,0"
            HorizontalAlignment="Center"
            VerticalAlignment="Top"
            Background="Yellow"
            Content="Click Me" />
    </Border>
</Grid>

[dotnet-policy-service]

Hi @@mzy666888. We have added the "s/needs-repro" label to this issue, which indicates that we require steps and sample code to reproduce the issue before we can take further action. Please try to create a minimal sample project/solution or code samples which reproduce the issue, ideally as a GitHub repo that we can clone. See more details about creating repros here: https://github.com/dotnet/maui/blob/main/.github/repro.md

This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.