MVVM Community Toolkit in .NET MAUI 10: ObservableProperty, RelayCommand, and Messenger Guide (2026)
Use the MVVM Community Toolkit 8.4.2 in .NET MAUI 10 to cut ViewModel boilerplate. Covers [ObservableProperty] on partial properties, [RelayCommand] with cancellation, ObservableValidator, and the WeakReferenceMessenger migration path away from MessagingCenter.