我想获取用户表里的用户ID。然后再把ID传给Session。

部分源代码如下：

 public bool Logon(LogOnModel model)
        {
            int? valid = ((from u in storeDB.Users.Where
                         (user => user.UserName == model.UserName && user.UserPWD == model.UserPWD)
                           select u).ToList()).Count;
            HttpContext.Current.Session["UserName"] = model.UserName;
            IQueryable<int> id =from u in storeDB.Users.Where
                               (u => u.UserName ==model.UserName)
                                select UserID;
            HttpContext.Current.Session["UserID"] =id;
            if (valid > 0)
            {
                return true;
              

            }
            else
            {
                return false;
            }
        }

但是提取id 获取失败。