leave_the_body_of_property_alone.cs

// This assumes you are using PropertyChanged.Fody
class ViewModel : INotifyPropertyChanged
{
    public bool Enabled { get; set; }
    // more properties

    protected void OnPropertyChanged(object sender, PropertyChangedEventArgs e)
    {
        switch (e.PropertyName)
        {
            case nameof(Enabled):
                HandleEnabledChanged();
                break;
        }
    }

    void HandleEnabledChanged()
    {
        Service.Record(Enabled);
    }
}