小编Jac*_*ack的帖子

有人可以帮我吗？我有以下代码来存储和修复catch,但是,它不起作用.即使我在slidingExpiration中将其设置为14天,缓存也会在几分钟内到期.提前致谢!

public static List<ReplyDTO> VideoCommentList()
{
     List<ReplyDTO> replyList = new List<ReplyDTO>();
     if (HttpRuntime.Cache["videoComment"] == null)
     {
         HttpRuntime.Cache.Remove("videoComment");
         HttpRuntime.Cache.Insert("videoComment", replyList, null, Cache.NoAbsoluteExpiration, TimeSpan.FromDays(14));
     }
     else
     {
         replyList = (List<ReplyDTO>)HttpRuntime.Cache["videoComment"];
     }

     if (replyList.Count > 8)
     {
         replyList = replyList.OrderByDescending(x => x.DateCreated).Take(8).ToList();
     }
     else
     {
         replyList = replyList.OrderByDescending(x => x.DateCreated).ToList();
     }
     return replyList;
}

public static List<ReplyDTO> AddVideoComment(ReplyDTO replyDTO)
{
     List<ReplyDTO> replyList = new List<ReplyDTO>();
     replyList = VideoCommentList();
     replyList.Add(replyDTO);
     HttpRuntime.Cache.Insert("videoComment", replyList, null, Cache.NoAbsoluteExpiration, TimeSpan.FromDays(14));

     if (replyList.Count > 8)
     {
          replyList = replyList.OrderByDescending(x => …

我需要一些帮助来解决这个错误"ObjectContext实例已被处理,不能再用于需要连接的操作."

它是一个asp.net mvc3,EF4和ms sql.这是剃须刀,有两个下拉菜单:

<div class="editRow">
@Html.DropDownListFor(m=>m.IndustryId, (SelectList)ViewBag.Industry, @Empower.Resource.General.ddlDefaultVal, new { @class = "ddl400" })
@Html.ValidationMessageFor(m => m.IndustryId)
</div>
<div class="editRow">
@Html.DropDownListFor(m=>m.ProvinceId, (SelectList)ViewBag.Province, @Empower.Resource.General.ddlDefaultVal, new {@class = "ddl400"})
 @Html.ValidationMessageFor(m => m.ProvinceId)   
</div>

控制器:

 IndustryService indService = new IndustryService();
ViewBag.Industry = new SelectList(indService.GetAllIndustry(), "IndustryId", "IndustryName");
ProvinceService proService = new ProvinceService();
ViewBag.Province = new SelectList(proService.GetAllProvince(), "ProvinceId", "ProvinceName");
 return View();

ProvinceService:

public IEnumerable<Province> GetAllProvince()
        {
            using (var context = DBContext.ObjectContext)
            {
                var pros = context.Provinces;
                return pros;
            }
        }

IndustryService与上述相同......

public class DBContext …

我需要执行/显示从Arraylist到JTextArea的一系列事件,但是,每个事件都会以不同的时间执行.以下是我的目标的一个简单示例:

public void start(ActionEvent e)
 {
  SwingUtilities.invokeLater(new Runnable()
  {
   public void run()

   {
    jTextArea.append("Test" + "\n");
    try
    {
     Thread.sleep(3000);
    } catch (InterruptedException e1)
    {
     e1.printStackTrace();
    }
    jTextArea.append("Test1" + "\n");
   }
  });
 }

所以现在,整个执行完成后,"Test"和"Test1"会显示在JTextArea上.如何首先显示"测试",然后3秒后显示"Test1"

提前谢谢你们

我需要执行/显示从Arraylist到JTextArea的一系列事件,但是,每个事件都会以不同的时间执行.以下是代码,它在循环中的第二个Event处失败:

   Thread worker = new Thread(new Runnable()
            {
                public void run()
                {
                    while (eventList.size() > 0)
                        for (Event ev : eventList)
                        if(ev.ready())
                        {
                            /*try
                            {
                                Thread.sleep(1000);
                            } catch (InterruptedException e1)
                            {
                                e1.printStackTrace();
                            }*/
                            jTextArea.append(ev.toString() + "\n");
                            eventList.remove(ev);

                        }
                }
            });
            worker.start();