protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
                if (IsPostBack == false)
                {

                    XuLy_NhapTP control = new XuLy_NhapTP();
                    control.LayDHdangXL();

                    DAO_Entity entities = new DAO_Entity();
                    gridDSDonHang.DataSource = entities.LayDSDonHangDangXuLy();
                    gridDSDonHang.DataBind();
                }
            }
            catch (Exception)
            {
                
                throw;
            }
        }
 //DSDonHangDangXuLy
 public void LayDHdangXL()
 {
     DAO_Entity dao = new DAO_Entity();
     dao.LayDSDonHangDangXuLy();
 }