public RelayCommandSubscription(
IMvxCommand command,
INotifyPropertyChanged propertyChanged,
Expression <Func <object> >[] properties
)
{
if (command == null)
{
throw new ArgumentNullException(nameof(command));
}
if (propertyChanged == null)
{
throw new ArgumentNullException(nameof(propertyChanged));
}
if (properties == null)
{
throw new ArgumentNullException(nameof(properties));
}
_commandReference = new WeakReference <IMvxCommand>(command);
_subscription = propertyChanged.WeakSubscribe(OnPropertyChanged, properties);
}
public MvxPropertyChangedListener(INotifyPropertyChanged notificationObject)
{
if (notificationObject == null)
{
throw new ArgumentNullException("notificationObject");
}
_notificationObject = notificationObject;
_token = _notificationObject.WeakSubscribe(NotificationObjectOnPropertyChanged);
}
public static WeakPropertyChangedSubscription WeakSubscribe <T>(this INotifyPropertyChanged source, Expression <Func <T> > property, EventHandler <PropertyChangedEventArgs> target)
{
return(source.WeakSubscribe((property.Body as MemberExpression).Member.Name, target));
}
public static WeakPropertyChangedSubscription WeakSubscribe(this INotifyPropertyChanged source, EventHandler <PropertyChangedEventArgs> target)
{
return(source.WeakSubscribe(null, target));
}
