using resx files

Hello,

i tried to add a image as a ressource to my project.

For that i double click the *.resx file and end up where i can add a ressource.

I did this and add my image here.

But after i changed somethin and compiled the project again the ressource i added are no longer

listed in the editor ( double click on the resx file )

What did i wrong here?

Thanks

Matthias