async/await keywords not available in .net 4.0

Question

I would like to use the async/await in C# 4.0 and I have installed the following package:

http://www.nuget.org/packages/Microsoft.Bcl.Async/

The problem is t

Answer 1

using System.Threading.Tasks;

private void simpleMethod()
{
    var tsk = Task.Factory.StartNew(() => DoSomeWorkAsync());
    Task.WaitAll(tsk);
    DataTable table = tsk.Result;
}

It is important that the asynchronous method should not contain any method that affects form controls

    private DataTable DoSomeWorkAsync()
    {           
        System.Data.DataTable table = new System.Data.DataTable();
        Thread.Sleep(4000); // Any long time process
        return table;
    }

More information: https://www.simplethread.com/net-40-and-systemthreadingtasks/