增强的WebBrowser浏览器控件，支持NavigateError，支持重写网页的window.alert()方法。 // 追加事件 .... this.webBrowser1.NavigateError += new AdvWebBrowser.WebBrowserNavigateErrorEventHandler(webBrowser1_NavigateError); this.webBrowser1.Quit += new EventHandler(webBrowser_Quit); .... void webBrowser_Quit(object sender, EventArgs e) { // JavaScript window.close(); this.Close(); } ///

/// 页面发生错误时执行 ///

/// /// void webBrowser1_NavigateError(object sender, WebBrowserNavigateErrorEventArgs e) { if (e.StatusCode != HttpStatusCode.OK) { // 发生错误时，转向本地页面 if (e.StatusCode == HttpStatusCode.NotFound) { } //else if (e.StatusCode == HttpStatusCode.InternalServerError) { // //} else if (e.StatusCode.ToString() == "-2146697211") { MessageBox.Show("无法连接到网络，请检查您的网络设置。", "服务不可用"); this.Close(); } else { //string err = string.Format("NavigateError: {0:d} = {0}", e.StatusCode); //MessageBox.Show(err); } } }