C#WebBrowser控件使用教程与技巧收集

Navigate(string urlString):浏览urlString表示的网址
Navigate(System.Uri url)：浏览url表示的网址
Navigate(string urlString, string targetFrameName, byte[] postData, string additionalHeaders): 浏览urlString表示的网址，并发送postData中的消息
//（通常我们登录一个网站的时候就会把用户名和密码作为postData发送出去)
GoBack()：后退
GoForward()：前进
Refresh()：刷新
Stop()：停止
GoHome()：浏览主页
WebBrowser控件的常用属性：
Document：获取当前正在浏览的文档
DocumentTitle：获取当前正在浏览的网页标题
StatusText：获取当前状态栏的文本
Url：获取当前正在浏览的网址的Uri
ReadyState：获取浏览的状态
WebBrowser控件的常用事件：
DocumentTitleChanged,
CanGoBackChanged,
CanGoForwardChanged,
DocumentTitleChanged,
ProgressChanged,
ProgressChanged
DocumentCompleted 页面加载完成之后的事件

webBrowser1.Document.All["控件ID"].InnerText;
或webBrowser1.Document.GetElementById("控件ID").InnerText;
或webBrowser1.Document.GetElementById("控件ID").GetAttribute("value");

webBrowser1.Document.All["控件ID"].GetAttribute("value");;
或webBrowser1.Document.GetElementById("控件ID").GetAttribute("value");

webBrowser1.Document.GetElementById("addDiv").Style;

Object[] objArray = new Object[1];
objArray[0] = (Object)this.labFlightNumber.Text;
webBrowser1.Document.InvokeScript("ticketbook", objArray);
webBrowser1.Document.InvokeScript("return false");

HtmlElement btnAdd = doc.GetElementById("addDiv").FirstChild;
btnAdd.InvokeMember("Click");

this.timer1.Enabled = true;
this.timer1.Interval = 1000 * 2;
private void timer1_Tick(object sender, EventArgs e)
{
    this.timer1.Enabled = false;
    ClickBtn.InvokeMember("Click");//执行按扭操作
}

将WebBrowser控件ScriptErrorsSuppressed设置为True即可

private void webBrowser1_Navigated(object sender, WebBrowserNavigatedEventArgs e)
{
  //自动点击弹出确认或弹出提示
  IHTMLDocument2 vDocument = (IHTMLDocument2)webBrowser1.Document.DomDocument;
  vDocument.parentWindow.execScript("function confirm(str){return true;} ", "javascript"); //弹出确认
  vDocument.parentWindow.execScript("function alert(str){return true;} ", "javaScript");//弹出提示
}

HtmlDocument docFrame = webBrowser1.Document.Window.Frames["mainFrame"].Document; 
或
HtmlDocument docFrame = webBrowser1.Document.All.Frames["mainFrame"].Document; 
docFrame.All["mainFrame"].SetAttribute("src", "http://www.sufeinet.com/");

this.webBrowser1.Select();
this.webBrowser1.Focus();
doc.All["TPL_password_1"].Focus();

webBrowser1.Navigate(Application.StartupPath + @"\Test.html");

//根据Name获取元素
public HtmlElement GetElement_Name(WebBrowser wb,string Name)
{
    HtmlElement e = wb.Document.All[Name];
    return e;
}
 
//根据Id获取元素
public HtmlElement GetElement_Id(WebBrowser wb, string id)
{
    HtmlElement e = wb.Document.GetElementById(id);
    return e;
}
 
//根据Index获取元素
public HtmlElement GetElement_Index(WebBrowser wb,int index)
{
    HtmlElement e = wb.Document.All[index];
    return e;
}
 
//获取form表单名name,返回表单
public HtmlElement GetElement_Form(WebBrowser wb,string form_name)
{
    HtmlElement e = wb.Document.Forms[form_name];
    return e;
}
 
 
//设置元素value属性的值
public void Write_value(HtmlElement e,string value)
{
    e.SetAttribute("value", value);
}
 
//执行元素的方法，如：click，submit(需Form表单名)等
public void Btn_click(HtmlElement e,string s)
{
 
    e.InvokeMember(s);
}

[DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]
      static extern bool InternetGetCookieEx(string pchUrl, string pchCookieName, StringBuilder pchCookieData, ref System.UInt32 pcchCookieData, int dwFlags, IntPtr lpReserved);
      private static string GetCookieString(string url)
      {
          uint datasize = 1024;
          StringBuilder cookieData = new StringBuilder((int)datasize);
          if (!InternetGetCookieEx(url, null, cookieData, ref datasize, 0x2000, IntPtr.Zero))
          {
              if (datasize < 0)
                  return null;
              cookieData = new StringBuilder((int)datasize);
              if (!InternetGetCookieEx(url, null, cookieData, ref datasize, 0x00002000, IntPtr.Zero))
                  return null;
          }
          return cookieData.ToString();
      }
      private void webBrowser1_DocumentCompleted_1(object sender, WebBrowserDocumentCompletedEventArgs e)
      {
          richTextBox1.Text = string.Empty;
          if (cbcookie.Checked)
          {
              if (checkBox1.Checked)
              {
                  richTextBox1.Text = GetCookieString(textBox1.Text.Trim());
              }
              else
              {
                  richTextBox1.Text = webBrowser1.Document.Cookie;
              }
          }
      }

//本事件是当每次加载完成当前页面后才会执行的
        private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            //e.Url是当前加载的页面，
            if (e.Url.ToString().Contains("http://sufeinet.com"))
            {
                //执行操作1
            }
            else if (e.Url.ToString().Contains("http://baidu.com"))
            {
                //执行操作2
            }
        }

private void webBrowser1_NewWindow(object sender, CancelEventArgs e)
{
        string url = ((System.Windows.Forms.WebBrowser)sender).StatusText;
        webBrowser1.Navigate(url);
        e.Cancel = true;
     
}