using System.Collections.ObjectModel; using Avalonia.Layout; using CommunityToolkit.Mvvm.ComponentModel; namespace Ursa.Demo.ViewModels; public partial class RangeSliderDemoViewModel: ObservableObject { public ObservableCollection Orientations { get; set; } = new ObservableCollection() { Orientation.Horizontal, Orientation.Vertical }; [ObservableProperty] private Orientation _orientation; }