WebBrowser中html元素如何触发winform事件

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  WebBrowser中html元素如何触发winform事件?
  这个问题来自论坛提问，对dom稍微了解的话还是比较简单的，只要注册一下事件就可以了。

  C#代码如下:

using System;
using System.ComponentModel;
using System.Windows.Forms;
namespace WindowsApplication5
...{
public partial class Form1 : Form
...{
public Form1()
...{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
...{
this.webBrowser1.Navigate("www.google.cn");
this.webBrowser1.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(webBrowser1_DocumentCompleted);
}
void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
...{
if (e.Url.ToString() != this.webBrowser1.Url.ToString()) return;
foreach(System.Windows.Forms.HtmlElement el in  this.webBrowser1.Document.GetElementsByTagName("input"))
...{
if (el.Name == "btnG")
...{
el.Click += new HtmlElementEventHandler(Form1_Click);
}
}
}
void Form1_Click(object sender, HtmlElementEventArgs e)
...{
MessageBox.Show("jinjazz pass");
}
}
}