Making a string property ObjectId in MongoDB with C#

Question

I just started with MongoDB. I am using it with C# drivers. Currently C# class looks like this:

 [BsonRepresentation(BsonType.ObjectId)]
        public string Id { get; set; }
        public string userId { get; set; }
        public List<string> filters { get; set; }

With this class I am able to save and fetch the records in MongoDB.

What I want :- Instead of creating a separate property to hold ID (in my case its Id property), I want to make userId property as the ObjectId.

Please note , I will be supplying the userId which will be a unique string value . Is it possible to achieve this with MongoDB?

Answer 1

Sure it is possible.

just put [BsonId] on userId prop and delete Id property