Add the library link to the main application. Verify that (in the Resources file) the Access Modifier is set to public.
Link to the line as follows:
textBox1.Text = ClassLibrary1.Resource1.ClassLibrary1TestString;
I added the resource file with a right-click, thus "1" in the name. If you go to the "Properties" page for the class library and go to the "Resources" tab, you can add a default resource file that will not have the number "1" in the name.
Just make sure your values ββare publicly available, and that you have a link in the main project, and you shouldn't have a problem.
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