using System;

using System.IO;

using Newtonsoft.Json;

using Newtonsoft.Json.Bson;

​

public class Program

{

    public static void Main()

    {

        Event e = new Event

        {

            Name = "Movie Premiere",

            StartDate = new DateTime(2013, 1, 22, 20, 30, 0, DateTimeKind.Utc)

        };

​

        MemoryStream ms = new MemoryStream();

        using (BsonWriter writer = new BsonWriter(ms))

        {

            JsonSerializer serializer = new JsonSerializer();

            serializer.Serialize(writer, e);

        }

​

        string data = Convert.ToBase64String(ms.ToArray());

​

        Console.WriteLine(data);

    }

}

​

​

public class Event

{

    public string Name { get; set; }

    public DateTime StartDate { get; set; }

}