Exemple #1
0
        // http://patrickdesjardins.com/blog/validation-failed-for-one-or-more-entities-see-entityvalidationerrors-property-for-more-details-2
        // ((System.Data.Entity.Validation.DbEntityValidationException)$exception).EntityValidationErrors

        #endregion

        #region 在线用户相关

        protected void UpdateOnlineUser(string username)
        {
            DateTime now            = DateTime.Now;
            object   lastUpdateTime = Session[SK_ONLINE_UPDATE_TIME];

            if (lastUpdateTime == null || (Convert.ToDateTime(lastUpdateTime).Subtract(now).TotalMinutes > 5))
            {
                // 记录本次更新时间
                Session[SK_ONLINE_UPDATE_TIME] = now;

                Online online = DB.Onlines.Where(o => o.User.Name == username).FirstOrDefault();
                if (online != null)
                {
                    online.UpdateTime = now;
                    DB.SaveChanges();
                }
            }
        }
Exemple #2
0
        protected void RegisterOnlineUser(User user)
        {
            Online online = DB.Onlines.Where(o => o.User.ID == user.ID).FirstOrDefault();

            // 如果不存在,就创建一条新的记录
            if (online == null)
            {
                online = new Online();
                DB.Onlines.Add(online);
            }
            DateTime now = DateTime.Now;

            online.User       = user;
            online.IPAdddress = Request.UserHostAddress;
            online.LoginTime  = now;
            online.UpdateTime = now;

            DB.SaveChanges();

            // 记录本次更新时间
            Session[SK_ONLINE_UPDATE_TIME] = now;
        }