protected void Button1_Click(object sender, EventArgs e) { _apiKey = ConfigurationManager.AppSettings["APIKey"]; Session["campaign"] = TextBox1.Text; try { string state = "ok"; OAuth.AuthorizeFromWebApplication(HttpContext.Current , state); //initialize ConstantContact members IUserServiceContext userServiceContext = new UserServiceContext(_accessToken, _apiKey); ConstantContactFactory _constantContactFactory = new ConstantContactFactory(userServiceContext); _emailCampaignService = _constantContactFactory.CreateEmailCampaignService(); _emailCampaginScheduleService = _constantContactFactory.CreateCampaignScheduleService(); _listService = _constantContactFactory.CreateListService(); _accountService = _constantContactFactory.CreateAccountService(); } catch (OAuth2Exception oauthEx) { // MessageBox.Show(string.Format("Authentication failure: {0}", oauthEx.Message), "Warning"); } //PopulateListOfCountries(); //PopulateUSAndCanadaListOfStates(); //GetListOfContacts(); //PopulateEmailLists(); }