private void BindGrid()
        {
            List <ReorderItem> list = new List <ReorderItem>();

            list = (List <ReorderItem>)Session["reorderList"];
            GridView_reorderList.DataSource = list;
            GridView_reorderList.DataBind();
        }
        private void InitBindGrid()
        {
            List <ReorderItem> list = new List <ReorderItem>();

            list = itemDAO.findItemList();

            ReorderItem item = new ReorderItem();

            for (int i = list.Count - 1; i >= 0; i--)
            {
                item = list[i];
                if (item.ReorderLevel <= item.QtyOnHand)
                {
                    list.RemoveAt(i);
                }
            }

            Session["reorderList"] = list;

            GridView_reorderList.DataSource = list;
            GridView_reorderList.DataBind();
        }