C#的WebBrowser操作frame实例解析

MessageBox.Show(webBrowser1.Document.Window.Frames["main"].Document.Body.InnerHtml);

HTMLDocument doc = (HTMLDocument)webBrowser1.Document.DomDocument;object j;for (int i = 0; i < doc.parentWindow.frames.length; i++){   j = i;   HTMLWindow2Class frame = doc.parentWindow.frames.item(ref j) as HTMLWindow2Class;   if (frame.name == "main")    {                MessageBox.Show(frame.document.title);              }}   

IHTMLDocument2 doc = (IHTMLDocument2)webBrowser1.Document.Window.Frames["main"].Document.DomDocument;

private void webBrowser1_Navigating(object sender, WebBrowserNavigatingEventArgs e){   string url = webBrowser1.Document.Window.Frames["main"].Document.ActiveElement.GetAttribute("src");}