Go offline command for Team Foundation Server and Visual Studio 2019. Version for VS2012, VS2015, VS2017 are also available.
You can find new menu item in TEAM menu as "Go Offline", also in context menu of Solution Explorer. When executed, it switches current solution and all projects to Offline mode, and you can work without access to your Team Foundation Server.
Based on GoOffline extension with permission of it's author Bernhard Tschirren.