Async/Await with a WinForms ProgressBar

Question

I\'ve gotten this type of thing working in the past with a BackgroundWorker, but I want to use the new async/await approach of .NET 4.5. I may be barking up the wrong tree.

Answer 1

@StephenCleary's answer is correct. Though, I had to make a little modification to his answer to get the behavior what I think OP wants.

public void GoAsync() //no longer async as it blocks on Appication.Run
{
    var owner = new Win32Window(Process.GetCurrentProcess().MainWindowHandle);
    _progressForm = new Form1();

    var progress = new Progress(value => _progressForm.UpdateProgress(value));

    _progressForm.Activated += async (sender, args) =>
        {
            await Go(progress);
            _progressForm.Close();
        };

    Application.Run(_progressForm);
}