Optimistic Concurrency with MongoDB C# driver and ASP.NET MVC – Prevent multiple users updating the same record

Over on my MongoDB C# Tutorial Richard asked how you would prevent multiple users from updating the same document. In this post I’m going to update the project in the tutorial to support this. In my blog example this issue could occur when user 1 clicks to edit a post. While editing, user 2 also edits the same post. User 2 finishes their edit before user 1 and saves the post. User 1 continues editing and saves their changes. User … →