How to use MongoDB C# Driver without specifying a class

Question

I am using MongoDB c# driver 2.0. I a trying to get a collection without specifying a type or class. Observe:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using MongoDB.Bson;
using MongoDB.Driver;
using MongoDB.Driver.Core;
using MongoDB.Driver.Linq;
using MongoDB.Shared;

namespace Meshplex.Service.DataWarehouse
{
    public class ProfileControllerMongoDB
    {
        private IMongoDatabase _mongoDb;
        private IMongoCollection _myCollection;
        //private IMongoCollection<ClassHere> _myCollection;

        public ProfileDataControllerMongoDB()
        {
            _mongoDb = GetMongoDatabase();
            _myCollection = _mongoDb.GetCollection(GetCollectionName());
            //_myCollection = _mongoDb.GetCollection<ClassHere>("Collection");
        }

        public async Task<string> GetAllRecords()
        {
            //This should return json
            return await _myCollection.Find(new BsonDocument());
        }

As you see I should be specifying a class when declaring IMongoCollection. Is there a way to use MongoDB Driver without specifying a a class?

Have you tried using in there? See http://mongodb.github.io/mongo-csharp-driver/2.0/what_is_new/#new-api — Ron Beyer, Apr 30 '15 at 01:10
You are calling _mongoDb.GetCollection without declaring a class, that should work for you — faljbour, Apr 30 '15 at 01:27
@faljbour It is giving me a syntax error. The commented out code will work. But don't want to specify a class. — Luke101, Apr 30 '15 at 01:37
see my answer, I use it to connect to Mongodb using the C# driver — faljbour, Apr 30 '15 at 01:38
my mistake my runtime version is 2.0.5 by the actual release version is 1.8.3, I downloaded 2.0 and yes, it is much different. — faljbour, Apr 30 '15 at 02:24
@RonBeyer: Care to post that as an answer so the question is officially answered? Upvote promised... — mnemosyn, Apr 30 '15 at 07:50

score 10 · Accepted Answer · answered Apr 30 '15 at 12:14

10

MongoDb supports a dynamic type in the generic parameter.

IMongoCollection<dynamic> _myCollection = _mongoDb.GetCollection<ClassHere>("Collection");

See http://mongodb.github.io/mongo-csharp-driver/2.0/what_is_new/#new-api

answered Apr 30 '15 at 12:14

Ron Beyer

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How to use MongoDB C# Driver without specifying a class

1 Answers1