WebBrowser Let the DocumentCompleted event execute and then proceed down

Q:webbrowser How do I get the DocumentCompleted event to execute and then go down?

A: Use the semaphore, wait a moment

System.Threading.AutoResetEvent obj = new System.Threading.AutoResetEvent (false);
void Webbrowser1_documentcompleted (object sender, WebBrowserDocumentCompletedEventArgs e)
... {
obj.　　　　Set ();
}
private void Button1_Click (object sender, EventArgs e)
... {
this.webBrowser1.DocumentCompleted + = new Webbrowserdocumentcompletedeventhandler (webbrowser1_　　　　　　documentcompleted);
This.webBrowser1.Navigate ("www.sina.com.cn");
Obj.　　　　　　Reset ();
while (obj. WaitOne (false) = = False) ...　　　　　　{application.doevents ();}
MessageBox.Show ("");
}