通过注入脚本实现查看选中内容HTML源代码的功能【目前似乎只有遨游支持此功能，调试页面时很轻盈好用的功能】
1 private void MainForm_Load(object sender, EventArgs e)
2 {
3 wbMain.ObjectForScripting = this;
4 wbMain.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(wbMain_DocumentCompleted);
5 }
6
7 void wbMain_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
8 {
9 InjectGetSelection();
10 }
11
12 private void InjectGetSelection()
13 {
14 string js = "function kai_GetSelect(){return document.selection.createRange().htmlText;} ";
15 //js += " function kai_Delete(){var ele = document.getElementById('jsInject'); ele.parentNode.removeChild(ele);} ";
16 InjectJS(js);
17 }
18
19 private void InjectJS(string js)
20 {
21 var ele = wbMain.Document.CreateElement("script");
22 ele.SetAttribute("text", js);
23 ele.Id = "jsInject";
24 wbMain.Document.Body.AppendChild(ele);
25 }
26
27 private void btnViewSelected_Click(object sender, EventArgs e)
28 {
29 if (wbMain.Document == null)
30 return;
31
32 object obj = wbMain.Document.InvokeScript("kai_GetSelect");
33 if (obj != null)
34 txtHtml.Text = obj.ToString();
35 else
36 txtHtml.Text = "";
37 //wbMain.Document.InvokeScript("kai_Delete");
38 }
