c#给webBrowser添加click事件

private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
HtmlDocument htmlDoc = webBrowser1.Document;
htmlDoc.Click+=new HtmlElementEventHandler(htmlDoc_Click);
}
private void htmlDoc_Click(object sender, HtmlElementEventArgs e)
{
HtmlDocument doc = sender as HtmlDocument;
HtmlElement ele = doc.GetElementFromPoint(e.ClientMousePosition);
MessageBox.Show(ele.OuterHtml);
}