My global resource designer file is empty when I add culture to the file name

Question

I am writing a asp.net web application with multi-language support. I want to add a resource to the App_GlobalResources file called "GlobalStrings". When I name the file GlobalStrings.resx, everything is fine. But when I add a file called GlobalStrings.en-US.resx the designer file behind it is empty (no text at all) an nothing appears in intellisense. Any ideas?

Answer 1

The deal is that there must be one resource file (default) without culture added.