title: Visual Studio SQL files not visible in Solution Explorer
body: <p>I added some .sql files to a project in my VS 2013 solution. I can see that the files have been added in Source Control Explorer, but in Solution Explorer the files don't show up in the SQL folders I added. If I click on the "Show All Files" I see an outline of the files, but I don't see why I should have to do that. In a different project of the solution these .SQL files do show up. Any idea what is going on here?</p>