Cannot deserialize a 'List<Object>' from BsonType 'Document'

Question

I have declared a List<object> in a class for declaring property, and fetching data from mongodb using C#, ex:

public List<object> name {get;set;} 

but it throws an error:

"Cannot deserialize a 'List' from BsonType 'Document'"

Answer 1

Your question is not clear, hope this answer can help you. In Mongo DB, for every entry in a collection, there will be object id followed by fields. To import those data, you need to declare a class which is having same mongo DB fields, like

// using MongoDB.Bson;
public class ToDo
    {
        public ObjectId Id { get; set; }
        public long ID { get; set; }
        public string Title { get; set; }
        public string Status { get; set; }
    }

so final code to get all datat from datatbase like follows

           //  using MongoDB.Driver;
           //  using MongoDB.Bson;
             private static Object GetCollection()
              {
                IMongoClient  _client = new MongoClient();
                IMongoDatabase _database = _client.GetDatabase("<urDBname>");
                var _collection = _database.GetCollection<ToDo>("<urCOLLECTIONname>");
                var documents = _collection.Find(new BsonDocument()).ToListAsync().Result;
                return documents;
              }

here documents will give the list of documents present in database collections. Make sure that your Mongo server is running properly.