protected void Page_Load(object sender, EventArgs e) { if (!string.IsNullOrEmpty(Convert.ToString(Request.QueryString["code"]))) { try { Authentication authdata = getaccesstoken(Convert.ToString(Request.QueryString["code"])); SetAuthorizationDataAsync(authdata).Wait(); ManageClient manageClient = new ManageClient(); manageClient.RunAsync(_authorizationData); } catch (Exception ex) { } } else { generatecode(); } }