private T BoxItem(T item)
{
if (!(item != null && proxyWrapper.UnwrapPropertyObservable(item) is IPropertyProxy propertyProxy))
{
IObservableProperty observableProperty = observableFactory.CreateObservableProperty(typeof(T));
if (item != null)
{
observableProperty.OverwriteFrom(item, true);
}
propertyProxy = proxyFactory.Create(observableProperty);
}
foreach (var subscriber in subscribers)
{
propertyProxy.Subscribe(subscriber);
}
return(proxyWrapper.WrapPropertyObservable <T>(propertyProxy));
}