public ActionResult Logon(MemberModel model)
        {
            ModelState.Remove("IndustryId");
            ModelState.Remove("Name");
            ModelState.Remove("Company");
            ModelState.Remove("CompanyNo");
            ModelState.Remove("CompanyNum");
            ModelState.Remove("CompanyTypeList");
            ModelState.Remove("Email");
            ModelState.Remove("RegDate");
            ModelState.Remove("CheckPassword");
            ModelState.Remove("ReceiveEpaperInfo");
            string captcha = AccountUtil.GetCaptcha();
            if (!captcha.Equals(model.ConfirmationCode, StringComparison.OrdinalIgnoreCase))
            {
                ModelState.AddModelError("ConfirmationCode", "驗證碼錯誤");
            }
            else
            {
                model.DoLogon();
            }

            if (model.SendOrderOk)
            {
                return View("LogOff", model);
            }
            else
            {
                return View(model);
            }
        }