Ошибки в BackgroundWorker

public void Method()
{
        BackgroundWorker worker= new BackgroundWorker
        {
          WorkerReportsProgress = true,
          WorkerSupportsCancellation = true
        };

        worker.DoWork += worker_DoWork;
        worker.RunWorkerCompleted += worker_RunAsyncComplited;
        worker.ProgressChanged += _parentForm.ProgressChanged;

        worker.RunWorkerAsync();
}

private void worker_DoWork(object sender, DoWorkEventArgs e)
{
        throw new ApplicationException("MyError");
}

private void worker_RunAsyncComplited(object sender, RunWorkerCompletedEventArgs e)
{
        if (e.Error != null)
        {
          MessageBox.Show(e.Error.Message, "Ошибка");
        }

        if (e.Cancelled)
        {
        }
        else
        {
        }
}