Exporting and importing bookmarks in Visual Studio
The bookmarks are stored in the solution's SUO file. So in theory you can import/export them by copying that file around, or placing it in source control. In practice, that would be a bad idea because that file is meant to be developer-specific and overwriting it will cause collateral damage in addition to importing the bookmarks.
However, if you have a specific scenario in mind where that is not a problem you can try doing it.
A better solution to standard bookmarks...
Go to Tools/Options/Environment/Task List and add a new tag to record them. I wanted to use the phrase MARK but this word is too common in my code, so I'm using BOOKMARK set as low priority.
Whenever I want to leave a bookmark I just type //BOOKMARK: this is a bookmark, and that's it, simple!
To view them just open the Task List window and sort by priority or description and scroll down.
This is hugely better than standard bookmarks because they ...
- are 'pinned' with the actual code and don't drift
- can be shared with your own multiple environments and with other developers
- are never lost if you suffer a problem with Visual Studio
- are still searchable and readable in other editors eg notepad
- you could create different tags to group different types of bookmarks together