Robert 的部落格

webBrowser1.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(webBrowser1_DocumentCompleted);

private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) {
 //This line is so you only do the event once 
 if (e.Url != webBrowser1.Url) 
 return;

 //do you actual code 

}

參考:How to make WebBrowser wait till it loads fully?