如何将TFS的工作模式设置为Lock-Modify-Unlock？

Hey there! Let's walk through how to configure your TFS source control to use the Lock-Modify-Unlock model—where only one person can check out a file at a time. I'll cover both global project-wide settings and targeted file/folder configurations, plus a quick way to verify it's working.

1. Set Exclusive Check-Out as the Default for Your Entire Team Project #

If you want every file in your project to follow this workflow, do this:

• Open Team Explorer in Visual Studio and connect to your TFS team project collection.
• Right-click your target team project, then select Team Project Settings > Source Control.
• In the Source Control Settings window, flip to the Check-out Settings tab.
• Under Check-out type, pick Exclusive check-out (required). This forces every check-out to lock the file automatically—no one else can edit it until the user checks it back in (which unlocks it).
• Hit OK to save the changes. This will apply to all files in the project going forward.

2. Apply Exclusive Check-Out to Specific Files/Folders Only #

If you don't want the whole project using this model, just target specific files or folders:

• In TFS Source Control Explorer, navigate to the file or folder you want to restrict.
• Right-click it, choose Properties, then go to the Advanced tab.
• Look for the Check-out settings section and check the box for Require exclusive check-out.
• Click OK to confirm. Now only this item (and sub-items if it's a folder) will use Lock-Modify-Unlock.

3. Verify the Setup Works #

To make sure everything's configured correctly:

• Have one user check out a restricted file—you'll see a lock icon next to it in Source Control Explorer.
• Have a second user try to check out the same file. TFS will pop up a message saying the file is locked and can only be opened read-only.

Quick Tip for Admins #

If someone forgets to check in a locked file, you can force-unlock it:

• In Source Control Explorer, find the locked file, right-click it, then select Undo Checkout > Undo Checkout for User. Pick the user who has it locked, and TFS will unlock the file and undo their check-out.

内容的提问来源于stack exchange，提问作者jimbo R