Locking MVC Controller Background Workflow

Question

I want to run some code from an ASP.NET MVC controller action in a new thread / asynchronously. I do not need an answer, I want to start and forget and return the view to the user while the asynchronous method is running in the background. I thought a class BackgroundWorkeris suitable for this?

public ActionResult MyAction()
{
    var backgroundWorker = new BackgroundWorker();
    backgroundWorker.DoWork += Foo;
    backgroundWorker.RunWorkerAsync();

    return View("Thankyou");
}

void Foo(object sender, DoWorkEventArgs e)
{
    Thread.Sleep(10000);
}

Why does this code cause a 10 second delay before returning the View? Why isnt View returned instantly?

More details, what do I need to do to make this work?

thank

Answer 1

You can simply start a new thread:

public ActionResult MyAction()
{
    var workingThread = new Thread(Foo);
    workingThread.Start();

    return View("Thankyou");
}

void Foo()
{
    Thread.Sleep(10000);
}