在webbrowser中完成documentCompleted后导航到下一页

Question

我是网络抓取的新手，我想得到一个“id”，我希望webbrowser使用这个“id”导航下一页并做我想做的事情。例如;

Go to https://www.example.com/
then get "id"
navigate https://www.example.com/id
then get title name
Go to https://www.example.com/
then get "second id"
navigate https://www.example.com/id
then get title name
...

我如何在c＃上实现这一目标？

注意：此网站具有“安全超文本传输​​协议（https）”

编辑：当网址导航到www.example.com/id

时，DocumentCompleted会触发两次

        [STAThread]
        static void Main(string[] args)
        {   
            WB = new WebBrowser();
            WB.AllowNavigation = true;
            WB.ScriptErrorsSuppressed = true;
            WB.Navigate("https://www.example.com/page");
            WB.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(WB_DocumentCompleted);
            while (completed)
            {
                Application.DoEvents();
            }
        }

static async void WB_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            System.Windows.Forms.HtmlDocument doc = WB.Document;

            var docy = new HtmlAgilityPack.HtmlDocument();
            docy.Load(new StringReader(WB.Document.Body.InnerHtml));

            HtmlElementCollection divs = doc.GetElementsByTagName("td");

            if (WB.Url.ToString().IndexOf("page") > -1)
            {     
                HtmlNodeCollection prens = docy.DocumentNode.SelectNodes(".//*[@id='mid']//dıv//dıv//table//tbody//tr//td//a");
                for (int i = 0; i < prens.Count; i++)
                {
                    HtmlNode nodes= docy.DocumentNode.SelectSingleNode(".//*[@id='mid']//dıv[6]//dıv//table[2]//tbody//tr[" + satir + "]//td[2]//a");

                    HtmlNode links = nodes;
                    if (links != null)
                    {
                        hrefValue = links.GetAttributeValue("href", string.Empty);
                        string[] gelenevent = hrefValue .Split('.');
                        eventid = gelenevent[0].Remove(0, 1);

                        satir++;
                        while (WB.IsBusy)
                            Application.DoEvents();
                        for (int y = 0; y < 500; y++)
                            if (WB.ReadyState != WebBrowserReadyState.Complete)
                            {
                                Application.DoEvents();
                                await Task.Delay(5000);
                                Thread.Sleep(10);
                            }
                            else
                                break;
                        Application.DoEvents();
                        WB.Navigate(new Uri("https://www.example.com/" + eventid + ".html"));

                        break;
                    }
                }
            }

            if (WB.Url.ToString().IndexOf(eventid) > -1)
                {
                    var node = docy.DocumentNode.SelectSingleNode(".//*[@id='mid']//dıv[6]//dıv//table[4]//tbody//tr[2]//td[1]");

                while (WB.IsBusy)
                    Application.DoEvents();
                for (int i = 0; i < 500; i++)
                    if (WB.ReadyState != WebBrowserReadyState.Complete)
                    {
                        Application.DoEvents();
                        await Task.Delay(5000);
                        Thread.Sleep(10);
                    }
                    else
                        break;
                Application.DoEvents();

                    WB.Navigate(new Uri("https://www.example.com/page"));

                }
        }