Question

In WPF/SL, I could use the DependencyPropertyDescriptor to add listeners on value changes.

In Win8, this class does not seem to exist and so I am looking for an alternate (hopefully as easy) way of doing this.

Answer 1

You can create a PropertyChangeNotifier class as described in this blog post

After you create it you can use it on attached properties like this:

ListBox listbox = new ListBox();
...
PropertyChangeNotifier notifier = new PropertyChangeNotifier(listBox, “(Grid).Row”);
notifier.ValueChanged += new EventHandler(OnValueChanged);

Also, DependencyPropertyDescriptor doesn’t exists in .net 4.5 client profile. However, it does exist in the normal profile. So if you must have it just change the target framework of your project.