Implement an extension method of NotifyPropertyChanged for convenience

[osamakawish]

In all honesty, I'd do this myself, and know how to. I just don't know where you guys would want me to put it. And part of it is also that I've never worked on someone else's code before.

Basically, I want a method like the following in some class:

public static void NotifyPropertyChanged(this INotifyPropertyChanged notifyPropertyChanged,
                                        [CallerMemberName] String propertyName = "")  
{  
    PropertyChanged?.Invoke(notifyPropertyChanged, new PropertyChangedEventArgs(propertyName));
}

Since this is a very convenient method to use and I use it repeatedly. It could go inside a static class within the System.ObjectModel assembly.

It's commonly used for property binding, as provided as an example here.