WebBrowser讓DocumentCompleted事件執行完畢後再往下執行

 Q:WebBrowser如何讓DocumentCompleted事件執行完畢後再往下執行？

A:使用信號量，等待一下

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(10, false) == false) ...{ Application.DoEvents(); }
            MessageBox.Show("");
        }