How should i properly invoke a WebBrowser using multiplethreads?

Question

Problem Scope:

I\'m writing an aplication to save the HTML\'s retrieved from the Bing and Google searches. I know there are classes to execute the W

Answer 1

Although this seems a strange way, here is my attempt.

var tasks = new Task<string>[]
{
    new MyDownloader().Download("http://www.stackoverflow.com"),
    new MyDownloader().Download("http://www.google.com")
};

Task.WaitAll(tasks);
Console.WriteLine(tasks[0].Result);
Console.WriteLine(tasks[1].Result);

---

public class MyDownloader
{
    WebBrowser _wb;
    TaskCompletionSource<string> _tcs;
    ApplicationContext _ctx;
    public Task<string> Download(string url)
    {
        _tcs = new TaskCompletionSource<string>();

        var t = new Thread(()=>
        {
            _wb = new WebBrowser();
            _wb.ScriptErrorsSuppressed = true;
            _wb.DocumentCompleted += _wb_DocumentCompleted;
            _wb.Navigate(url);
            _ctx = new ApplicationContext();
            Application.Run(_ctx);
        });

        t.SetApartmentState(ApartmentState.STA);
        t.Start();

        return _tcs.Task;
    }

    void _wb_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
    {
        //_tcs.TrySetResult(_wb.DocumentText);
        _tcs.TrySetResult(_wb.DocumentTitle);
        _ctx.ExitThread();
    }
}