You can find the first attempt here: https://lowendahl.net/showShout.aspx?id=184

The basic idea is to find the DataContext used when fetching a single object from that object later in the application life-cycle.

I've re-written the whole enchilada now to an extension method that extends INotifyPropertyChanging.

The syntax for getting the context is now:

DataContext context = propduct.GetDataContextFromMe();

or

NorthwindDataContext = product.GetDataContextFromMe();

For a typed version.

You can find and download the extension class here: https://lowendahl.net/shoutCode.aspx