public byte[] DownloadTicket() { string url = string.Format(ObjectUtil.SysCulture, WeConst.QR_TICKET, Uri.EscapeDataString(Ticket)); HttpWebResponse response = NetUtil.HttpGet(new Uri(url)).Convert <HttpWebResponse>(); if (response.StatusCode == HttpStatusCode.OK) { return(NetUtil.GetResponseData(response)); } else { response.DisposeObject(); } return(null); }