public static PropertyObservable <TProperty> CreateFromPropertySelector <TSubject, TProperty>(TSubject subject, Expression <Func <TSubject, TProperty> > propertySelector)
where TSubject : INotifyPropertyChanged
{
if (!(propertySelector.Body is MemberExpression current))
{
throw new ArgumentException();
}
var result = new PropertyObservable <TProperty>();
result.SetRootNode(PropertyPathNode.CreateFromPropertySelector(propertySelector));
result.SetSource(subject);
return(result);
}
