webBrowser可以获取ajax生成的内容吗？

[shijie03]

webBrowser可以获取ajax生成后内容的HTML代码吗？如果可以请问如何做？

[yonglaixiazaide]

必须可以，webBrowser本身就可以显示ajax请求的html啊，如果单纯的ajax信息，你可以找到ajax请求的UR了就可以了~

[宝_爸]

可以，不过 控件没有办法知道 javascript的事件，DocumentComplete也不会发生，只能自己写个Timer去检查内容是不是改变了。

[宝_爸]

我在另一个帖子里写的测试代码
http://topic.csdn.net/u/20120820/10/f2f21a45-5395-4cef-8d08-34e2022be8f1.html

       System.Timers.Timer timer = null;

        private void Form1_Load(object sender, EventArgs e)
        {
            string url = "http://stock.finance.sina.com.cn/hkstock/finance/01398.html";

            webBrowser1.Navigate(url);
            timer = new System.Timers.Timer(1000);
            timer.AutoReset = false;
            timer.Elapsed += new System.Timers.ElapsedEventHandler(Timer_Elapsed);
            
        }

        public delegate void GetDataHandler();

        private void Timer_Elapsed(object sender, ElapsedEventArgs e)
        {
            Invoke(new GetDataHandler(getData));

            timer.Start();
        }


         private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            //避免webbroswer.DocumentCompleted被多次引发
            if ((e.Url != webBrowser1.Url) || (webBrowser1.ReadyState != WebBrowserReadyState.Complete))
                return;
            //下面写你要在页面加载完毕后执行的代码。

            getSelectedCtrl();
        }

        private void getSelectedCtrl()
        {
            System.Windows.Forms.HtmlDocument doc = this.webBrowser1.Document;
            System.Windows.Forms.HtmlElementCollection selectCtrls = doc.GetElementsByTagName("select");
            string attName;

            foreach (System.Windows.Forms.HtmlElement selectCtrl in selectCtrls)
            {
                attName = selectCtrl.GetAttribute("table");
                if (attName.Equals("tableGetBalanceSheet"))//如果table属性是资产负债表的话,模拟引发“报表类型”的选择控件
                {
                    foreach(HtmlElement option in selectCtrl.Children)
                    {
                        if(option.GetAttribute("value") == "zero")
                        {
                            option.SetAttribute("selected", "selected");
                            break;
                        }
                    }
                    selectCtrl.RaiseEvent("onchange");
                    timer.Start();
                    return;

                }

            }

        }

[swuxd]

引用 5 楼 findcaiyzh 的回复:

我在另一个帖子里写的测试代码 http://topic.csdn.net/u/20120820/10/f2f21a45-5395-4cef-8d08-34e2022be8f1.html

       System.Timers.Timer timer = null;

        private void Form1_Load(object sender, EventArgs e)
        {
            string url = "http://stock.finance.sina.com.cn/hkstock/finance/01398.html";

            webBrowser1.Navigate(url);
            timer = new System.Timers.Timer(1000);
            timer.AutoReset = false;
            timer.Elapsed += new System.Timers.ElapsedEventHandler(Timer_Elapsed);
            
        }

        public delegate void GetDataHandler();

        private void Timer_Elapsed(object sender, ElapsedEventArgs e)
        {
            Invoke(new GetDataHandler(getData));

            timer.Start();
        }


         private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            //避免webbroswer.DocumentCompleted被多次引发
            if ((e.Url != webBrowser1.Url) || (webBrowser1.ReadyState != WebBrowserReadyState.Complete))
                return;
            //下面写你要在页面加载完毕后执行的代码。

            getSelectedCtrl();
        }

        private void getSelectedCtrl()
        {
            System.Windows.Forms.HtmlDocument doc = this.webBrowser1.Document;
            System.Windows.Forms.HtmlElementCollection selectCtrls = doc.GetElementsByTagName("select");
            string attName;

            foreach (System.Windows.Forms.HtmlElement selectCtrl in selectCtrls)
            {
                attName = selectCtrl.GetAttribute("table");
                if (attName.Equals("tableGetBalanceSheet"))//如果table属性是资产负债表的话,模拟引发“报表类型”的选择控件
                {
                    foreach(HtmlElement option in selectCtrl.Children)
                    {
                        if(option.GetAttribute("value") == "zero")
                        {
                            option.SetAttribute("selected", "selected");
                            break;
                        }
                    }
                    selectCtrl.RaiseEvent("onchange");
                    timer.Start();
                    return;

                }

            }

        }

我试了一下这代码 怎么得到的源代码数据还是原来网页的呢