Bug: ListView doesn't render its items when using CollectionViewSource & NativeAot

[tipa]

Description

When using a grouped CollectionViewSource and Native AOT, the items of a ListView aren't shown - only the grouping headers

Steps To Reproduce

MainWindow.xaml

    <ListView ItemsSource="{x:Bind csv.View, Mode=OneWay}">
        <ListView.ItemTemplate>
            <DataTemplate x:DataType="sys:DateTime">
                <TextBlock Text="{x:Bind}"/>
            </DataTemplate>
        </ListView.ItemTemplate>
        <ListView.Resources>
            <CollectionViewSource x:Name="csv" ItemsPath="Dates" IsSourceGrouped="True" />
        </ListView.Resources>
        <ListView.GroupStyle>
            <GroupStyle>
                <GroupStyle.HeaderTemplate>
                    <DataTemplate x:DataType="l:DateGroup">
                        <TextBlock Text="{x:Bind GroupingDate}" FontWeight="SemiBold" TextAlignment="Center"/>
                    </DataTemplate>
                </GroupStyle.HeaderTemplate>
            </GroupStyle>
        </ListView.GroupStyle>
    </ListView>

MainWindow.xaml.cs

public sealed partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();

        csv.Source = new List<DateGroup>
        {
            new() {
                GroupingDate = new DateTime(2023, 10, 1),
                Dates = [new DateTime(2023, 10, 1), new DateTime(2023, 10, 2)]
            },
            new() {
                GroupingDate = new DateTime(2024, 10, 1),
                Dates = [new DateTime(2024, 10, 1), new DateTime(2024, 10, 2)]
            },
        };
    }
}

[WinRT.GeneratedBindableCustomProperty]
sealed partial class DateGroup
{
    public DateTime GroupingDate { get; set; }
    public List<DateTime> Dates { get; set; }
}

project.csproj

  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
    <SelfContained>true</SelfContained>
    <PublishAot>true</PublishAot>
  </PropertyGroup>

example project: test.zip

Expected Behavior

Version Info

Microsoft.Windows.CsWinRT 2.2.0
Microsoft.WindowsAppSDK 1.8.250410001-experimental1

Additional Context

No response

[Sergio0694]

Replace:

[new DateTime(2023, 10, 1), new DateTime(2023, 10, 2)]

With:

new List<DateTime> { new DateTime(2023, 10, 1), new DateTime(2023, 10, 2) }

Does that fix the issue? I think this issue is fixed in 2.3 already (by #1878).

[manodasanW]

That doesn't seem to fix it, I am looking more into this. The issue looks related to the ItemsPath binding to do a ToString.