I’ve just updated an older answer of mine at: https://social.msdn.microsoft.com/Forums/vstudio/en-US/716ef041-0a59-4c1d-9519-e14db4de7e75/localizability-vs-localizable-attributes-in-control-dev?forum=wpf In case you’re wondering too what’s the difference between Localizable and Localizability attributes in .NET, maybe this helps a bit: ...

While refactoring ClipFlair code to use MVVM (Model-View-ViewModel) pattern, I came across the XAML error “Object reference not set to an instance of an object.”, shown in Visual Studio when trying to bind to my ViewModel (accessed implicitly, being set as the DataContext of the XAML control) for a property named Source. I have settled [...]