public JsonResult itemLocationSave(string itemno, int left, int top, int width, int height, int itemindex)
 {
     try
     {
         Models.api_databoard_items item = itemsDbHelper.GetAll(u => u.itemno == itemno, u => u.id).FirstOrDefault();
         if (item != null)
         {
             item.itemx     = left;
             item.itemy     = top;
             item.itemw     = width;
             item.itemh     = height;
             item.itemindex = itemindex;
             //更新
             itemsDbHelper.Update(item);
             itemsDbHelper.SaveChanges();
             return(Json(new { access = true, msg = "", result = item }));
         }
         else
         {
             return(Json(new { access = false, msg = "未找到[" + itemno + "]对应的记录", result = item }));
         }
     }
     catch (Exception exp)
     {
         return(Json(new { access = false, msg = exp.Message }));
     }
 }
 public JsonResult itemSave(Models.api_databoard_items entity)
 {
     try
     {
         if (entity.id <= 0)
         {
             itemsDbHelper.Insert(entity);
             itemsDbHelper.SaveChanges();
         }
         else
         {
             itemsDbHelper.Update(entity);
             itemsDbHelper.SaveChanges();
         }
         return(Json(new { access = true, result = entity }));
     }
     catch (Exception exp)
     {
         return(Json(new { access = false, msg = exp.Message }));
     }
 }
        public JsonResult itemDelete(string itemno)
        {
            try
            {
                Models.api_databoard_items item = itemsDbHelper.GetAll(u => u.itemno == itemno, u => u.id).FirstOrDefault();
                if (item != null)
                {
                    itemsDbHelper.Delete(item);
                    itemsDbHelper.SaveChanges();
                    return(Json(new { access = true, msg = "" }));
                }
                else
                {
                    return(Json(new { access = false, msg = "未找到[" + itemno + "]对应的记录", result = item }));
                }

                // return Json(new { access = true });
            }
            catch (Exception exp)
            {
                return(Json(new { access = false, msg = exp.Message }));
            }
        }