using System; using System.Windows.Input; using CommunityToolkit.Mvvm.ComponentModel; using CommunityToolkit.Mvvm.Input; namespace Ursa.Demo.ViewModels; public partial class NumberDisplayerDemoViewModel: ObservableObject { [ObservableProperty] private int _value; [ObservableProperty] private double _doubleValue; [ObservableProperty] private DateTime _dateValue; public ICommand IncreaseCommand { get; } public NumberDisplayerDemoViewModel() { IncreaseCommand = new RelayCommand(OnChange); Value = 0; DoubleValue = 0d; DateValue = DateTime.Now; } private void OnChange() { Random r = new Random(); Value = r.Next(int.MaxValue); DoubleValue = r.NextDouble() * 100000; DateValue = DateTime.Today.AddDays(r.Next(1000)); } }