如何借用Webbrowser进行抓取Ajax请求的数据

WebClient MyWebClient = new WebClient(); MyWebClient.Credentials = CredentialCache.DefaultCredentials; //获取或设置用于向Internet资源的请求进行身份验证的网络凭据 Byte[] pageData = MyWebClient.DownloadData(tbUrl.Text); //从指定网站下载数据 string pageHt