Best way to update bindings that use x:reference as command parameters

[Axemasta]

I've been upgrading my app to .NET 9 and I'm going through updating any of the xaml compile warnings that have appeared in my project.

I have the following scenario that I'm unsure on the best way to upgrade after reading the docs I'm not sure I understand how I need to change my xaml...

Xaml:

<controls:SelectableEntryHierarchyView
    Entries="{Binding Entries}"
    x:Name="EntryHierarchyView" />

<controls:FooterView>
    <Button
        Command="{Binding LogEntryCommand}"
        CommandParameter="{Binding Source={x:Reference EntryHierarchyView}, Path=SelectedEntry}"
        Text="Log Entry" />
</controls:FooterView>

Command

[RelayCommand]
private async Task LogEntry(EntryDescriptionHierarchy? entryDescriptionHierarchy)
{
    if (entryDescriptionHierarchy is null)
    {
        return;
    }

    // Do something
}

If I add the x:DataType to my command parameter:

CommandParameter="{Binding Source={x:Reference EntryHierarchyView}, Path=SelectedEntry, x:DataType=controls:SelectableEntryHierarchyView}"

I get the following warning

I'm not sure if this way of using xaml is recommended anymore. Could anyone explain whether this is the correct approach and offer suggestions?

The reason I'm using x:Reference here is I can pass the object directly to my command as opposed to having my list bind to a property in my viewmodel, then my command have to check it there. In my opinion this is a cleaner approach of setting up my UI, is this approach still valid?

[Axemasta]

@simonrozsival appreciate you're probably quite busy, but would you be able to clarify my question given the scenario above fro the new xaml compilation engine?

[Axemasta]

The same error is present for CollectionView:

<CollectionView
    ItemTemplate="{StaticResource DownloadedLogbookCard}"
    ItemsSource="{Binding DownloadedLogbooks}"
    SelectedItem="{Binding SelectedLogbook}"
    SelectionChangedCommand="{Binding LogbookSelectedCommand}"
    SelectionChangedCommandParameter="{Binding Path=SelectedItem, Source={RelativeSource Self}, x:DataType=CollectionView}"
    SelectionMode="Single">