How to disable visualstudio.com stored project's multiple check-out?

Question

I have a project stored in visualstudio.com. However when I have a file checked out, my colleagues can do the same. How can I disable that feature? I went to TEAM -> Team Project Settings -> Source Control in VS 2012 and disabled "Enable multiple check-out". However nothing seems to have changed. Do I need to do something else with that? Secondly, I read this but when I right click a file and chose "Check-out for edit", it only has "Unchanged" and "CheckIn" lock types but no "Check-out" which, as I understand, is the thing I need to chose. So, is there a way to make sure only one person can edit a file at one time?

Answer 1

What kind of workspace are you using? Make sure you're using a server workspace. If you're using a local workspace which is the default when you create a new workspace in VS 2012/TFS 2012, checkout locks are disabled. For more info on local and server workspaces: Decide Between Using a Local or a Server Workspace.