Does .NET 4.5's async feature work with MySql and other databases too?

Question

I understand that .NET 4.5 comes with a bunch of features to make asynchronous database operations easier to implement. MSDN says that if the connection string is not set to

Answer 1

I was into the same problem today and I made a Console Application to test whether it's working or not. Seems to me it's not working for my MySQL connector 6.9.4.

using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace MySQLTest
{
    class Program
    {
        static void Main(string[] args)
        {
            Service service = new Service();

            var task1 = service.GetCountries("1");
            var task2 = service.GetCountries("2");
            var task3 = service.GetCountries("3");

            Console.WriteLine("bö");
            Console.ReadLine();
        }
    }

    public class Service
    {
       public async Task> GetCountries(string param)
       {
            Console.WriteLine(String.Format("{0} started.", param));
            using (worldEntities context = new worldEntities())
            {
                Console.WriteLine(String.Format("{0} awaiting.", param));
                List countries = await context.country.ToListAsync();

                Console.WriteLine(String.Format("{0} done.", param));
                return new List();
            }
        }
    }
}

This one outputs,

And When I change List countries = await context.country.ToListAsync();

to await Task.Delay(5000);

it outpus :

after 5 seconds.

So I say it's not supported yet.