How to Go Online after working offline in Visual Studio Projects?
If you have been working with Visual Studio for a while I am sure you came across situations where the TFS Server was unavailable when you were working on the Project source code. Its nice to know that TFS allows you to continue working on your project offline when your TFS server is down. That’s really cool and you do that by opening your Project Solution file (.sln) and if TFS is not available it will ask if you want to work offline and lets you work offline.
Now when your TFS service is back, how will you take your project back online to connect to your Source Control? It’s pretty simple.
In Visual Studio, just Go To File à Source Control à Go Online and that should take care of it.
Refer to Pic below.