I have yet to find a clear answer to this topic, so I'm writting this question in hope that someone can explain me the correct way to archieve my goal. I must also add that all my test was done on ...
I have a sandbox solution that for the some of it I have german translations for, like the feature name and description. However to make this a proper multi-lingual solution I need to do the same for ...
When defining a custom action via the CAML schema definition, the UrlAction parameter specifies the "site or site collection relative URL of the page, for example, ~site/_layouts/sampleurl.aspx or ...