How to: View a List of Checked-out Files
You can use the Pending Checkins window to display a list of the checked-out files in the current solution. Visual Studio source control allows you to check in files from this window with a single button click.
To view a list of modified files
In Visual Studio, on the View menu, click Pending Checkins.
Dock the window as desired.
If you want to check in files from this window, select them and click the Check In button.