public ActionResult UserOnlineAdd(FormCollection f) { bizUsers bu = new bizUsers(); Users modelUser = bu.Get(f["UserName"].Trim()); if (modelUser == null) { TempData["Msg"] = "û�и��û�"; return RedirectToAction("UserOnlineSet"); } bizUserOnlineTemp but = new bizUserOnlineTemp(); UserOnlineTemp model = new UserOnlineTemp(); model.UserID = modelUser.UserID; model.UserName = modelUser.UserName; model.LastCheckTime = DateTime.Now; but.Add(model); return RedirectToAction("UserOnlineSet"); }