網頁瀏覽器控制c＃只調用下次第一次不工作

我想從網站中提取一些數據，但submitbutton只調用第一次在文檔中完成event.after加載第一次提交的頁面文檔完成事件不執行我的代碼是網頁瀏覽器控制c＃只調用下次第一次不工作

private void b_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) 
    { 
     WebBrowser b = sender as WebBrowser; 
     string response = ""; 
     response = b.DocumentText; 
     HtmlElement links = b.Document.GetElementById("btn1"); 
     links.InvokeMember("click"); 
     checkTrafiicButtonClick = true; 
     MessageBox.Show(""); 
     ***// upto these working and loading second page after that i want to fill data 
      and want to submit but down line is not working and it should be work after  
      loading the page that i submitted how can i do these*** 

     HtmlElement tfrno = b.Document.GetElementById("TrfNo"); 
     tfrno.SetAttribute("value", "50012079"); 
     HtmlElement submitButon = b.Document.GetElementById("submitBttn"); 
     submitButon.InvokeMember("click"); 

    }

來源

2013-02-13 dfgv

不BTN1點擊加載新一頁？ – VladL 2013-02-13 12:06:28

是第一頁btn1點擊執行和第二頁loadig，但我想填寫第二頁的輸入框，並要提交 – dfgv 2013-02-13 12:10:50

只需添加一個變量，以跟蹤你的網頁。 – 2013-02-13 13:20:23

根據您的評論，您的代碼將無法正常工作。第一次點擊後，webbroser啓動異步頁面加載。你應該做以下幾點：

private void b_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) 
    { 
     WebBrowser b = sender as WebBrowser; 
    if(b.Url.AbsoluteUri == "mydomain.com/page1.html") 
    { 
     string response = ""; 
     response = b.DocumentText; 
     HtmlElement links = b.Document.GetElementById("btn1"); 
     links.InvokeMember("click"); 
     checkTrafiicButtonClick = true; 
     MessageBox.Show(""); 
     return; 
    } 
     ***// upto these working and loading second page after that i want to fill data 
      and want to submit but down line is not working and it should be work after  
      loading the page that i submitted how can i do these*** 
    if(b.Url.AbsoluteUri == "mydomain.com//page2.htm") 
    { 
     HtmlElement tfrno = b.Document.GetElementById("TrfNo"); 
     tfrno.SetAttribute("value", "50012079"); 
     HtmlElement submitButon = b.Document.GetElementById("submitBttn"); 
     submitButon.InvokeMember("click"); 
     return; 
    } 
    }

還要注意，該頁面的某些部分可以從不同的源iframe被加載，例如，所以你必須檢查適當uri

來源

2013-02-13 12:35:28 VladL

是的，實際上是第二頁的一些數據從iframe的一些另一個url llr如何檢查幀加載是否完成？ – dfgv 2013-02-13 13:21:34

@eldhose DocumentCompleted將針對每個加載的url啓動。然後使用fiddler分配幀的地址並檢查它是否已經被加載。 – VladL 2013-02-13 13:39:53

網頁瀏覽器控制c＃只調用下次第一次不工作

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