ResourceManager

Question

Hello

I have some trouble to figure out exactly how a multi-culture web site is working with ASP.NET using Visual Web Developer.
I've created a LeftMenu.resx file located in a folder called "en" (english) itself located in the App_GlobalResources of my project. I declare the ResourceManager like this :

ResourceManager rm = new ResourceManager("LeftMenu.resx", Assembly.GetExecutingAssembly()) ;

base on several examples I've found on the web but not really understood what are exactly the arguments taken. I got the following error:

Could not find any resources appropriate for the specified culture or the neutral culture.  Make sure "LeftMenu.resources" was correctly embedded or linked into assembly "App_Web_muexvdmd" at compile time, or that all the satellite assemblies required are loadable and fully signed.

I've read lots of documentation but all is not clear, hope somebody will be able to help me.