Cannot deserialize string from BsonType ObjectId in MongoDb C#

Question

I am getting error \"Cannot deserialize string from BsonType ObjectId\" while trying to get all the record from MongoDb in C# WebAPI

My Id is

Answer 1

Guid.NewGuid() will not produce ObjectId. Object Id is 12 byte data structure and Guid produce 16byte hex string (without '-')

You should remove attribute [BsonRepresentation(BsonType.ObjectId)]

You can use any string as Id in your entity for example 'HiDude' and any string in utf8 format.

Answer 2

Instead of using

ed.Id = Guid.NewGuid().ToString();

I used

ed.Id = MongoDB.Bson.ObjectId.GenerateNewId().ToString();

For generating Id

Its working fine : )