private void AddCoupons() { string formString = WebUtils.GetFormString("code"); CouponsInfo dataBySN = Coupons.GetDataBySN(formString); if (dataBySN == null) { base.WriteJsonTip(false, "优惠券编码无效", ""); } else if (base.UserID == -1) { base.WriteJsonTip(false, "会员没有登录", ""); } else if (dataBySN.EndTime > System.DateTime.Now) { base.WriteJsonTip(false, "优惠券已过期", ""); } else if (!string.IsNullOrEmpty(dataBySN.UserName)) { base.WriteJsonTip(false, "优惠券已经绑定了会员", ""); } else if (dataBySN.IsUsed) { base.WriteJsonTip(false, "优惠券已经使用过了", ""); } else if (dataBySN.UserName == base.UserName) { base.WriteJsonTip(false, "已经绑定了这张优惠券", ""); } else { dataBySN.UserName = base.UserName; if (Coupons.Update(dataBySN)) { base.WriteJsonTip(true, "优惠券绑定成功!", ""); } else { base.WriteJsonTip(false, "Thao tác thất bại!", ""); } } }