XAML-Map-Control/MapControl/Avalonia/MapPanel.Avalonia.cs

using Avalonia;

namespace MapControl;

public partial class MapPanel
{
    public static readonly AttachedProperty<bool> AutoCollapseProperty =
        DependencyPropertyHelper.RegisterAttached<bool>("AutoCollapse", typeof(MapPanel));

    public static readonly AttachedProperty<Location> LocationProperty =
        DependencyPropertyHelper.RegisterAttached<Location>("Location", typeof(MapPanel));

    public static readonly AttachedProperty<BoundingBox> BoundingBoxProperty =
        DependencyPropertyHelper.RegisterAttached<BoundingBox>("BoundingBox", typeof(MapPanel));

    public static readonly AttachedProperty<Rect?> MapRectProperty =
        DependencyPropertyHelper.RegisterAttached<Rect?>("MapRect", typeof(MapPanel));

    static MapPanel()
    {
        AffectsParentArrange<MapPanel>(LocationProperty, BoundingBoxProperty, MapRectProperty);
    }

    public static MapBase GetParentMap(FrameworkElement element)
    {
        return (MapBase)element.GetValue(ParentMapProperty);
    }
}