[regression/8.0.0-preview.4.8333] CollectionView has default spacing between items on Windows which I cannot remove

[samuelradford]

Description

The documentation says that a CollectionView has no default spacing between items. However, when adding a simple Label element, there is clear spacing between the items. I have tried multiple ways to remove this but cannot seem to find a way.

This happens on Windows. MacCatalyst seems OK.

Steps to Reproduce

1. Create a new .NET MAUI project
2. Remove the default MainPage.xaml content and replace with the following:

    <Grid RowDefinitions="*"
          ColumnDefinitions="*">
        <CollectionView Grid.Row="0" Grid.Column="0" 
                        ItemsSource="{Binding Strings}"
                        BackgroundColor="Red">
            <CollectionView.ItemTemplate>
                <DataTemplate x:DataType="local:MainPage">
                    <Label Text="{Binding .}"
                           TextColor="Black"
                           FontSize="14"
                           BackgroundColor="Yellow"/>
                </DataTemplate>
            </CollectionView.ItemTemplate>
        </CollectionView>
    </Grid>

3. Remove the default MainPage.xaml.cs code behind and replace with the following:

public partial class MainPage : ContentPage
{
    public List<string> Strings { get; set; }
    public MainPage()
	  {
               InitializeComponent();
               Strings = new();
               AddStrings();
	       BindingContext = this;
	  }
    void AddStrings()
    {
        for (var i = 0; i < 10; i++)
        {
            Strings.Add("CollectionView shouldn't have spacing between items");
        }
    }
}

4. Run the application

In my example I have set the CollectionView background to Red and the Label's to Yellow to clearly show where the spacing occurs.

You can see in this example that the Labels have space between then, even though in the documentation it says:

Source - https://learn.microsoft.com/en-us/dotnet/maui/user-interface/controls/collectionview/layout?view=net-maui-7.0

Example of application running

Link to public reproduction project repository

https://github.com/samuelradford/Reproduction.MAUICollectionViewSpacing

Version with bug

7.0 (current)

Last version that worked well

Unknown/Other

Affected platforms

Windows

Affected platform versions

Windows 11 (OS Build: 22000.1335)

Did you find any workaround?

No response

Relevant log output

No response

[Vroomer]

Duplicate of #4520

It's indeed annyoing bug and so far I didn't see any workaround for this.

[ghost]

We've moved this issue to the Backlog milestone. This means that it is not going to be worked on for the coming release. We will reassess the backlog following the current release and consider this item at that time. To learn more about our issue management process and to have better expectation regarding different types of issues you can read our Triage Process.

[PureWeen]

This was rebroken by

#14532

Once this is fixed please verify

• CollectionView ItemSpacing cannot be set below an arbitrary value #4520
• Windows HorizontalList CollectionView has some weird space if cells are smaller than 88 dp #15241
• [regression/8.0.0] [Windows] Fix CollectionView tests that have regressed #15529