1.封裝

    public class UserDataContext
    {
        private IMongoDatabase _mongoDatabase;

        public UserDataContext()
        {
            MongoUrl mongourl = new MongoUrl("mongodb://cy:[email protected]:27017/User");
          //  MongoUrl mongourl = new MongoUrl(ConfiguredManager.AppSettings["MongoDb"]);
 

            var mongoClient = new MongoClient(mongourl);
            _mongoDatabase = mongoClient.GetDatabase(mongourl.DatabaseName);
        }

        public IMongoCollection<Post> Post => _mongoDatabase.GetCollection<Post>(typeof (Post).Name);
    }

2.使用

  var p = new UserDataContext().Post
 
.AsQueryable().Count();

完畢，可再優化請指教