public void LayComboboxDanhGia(ComboBoxEx cmb)
        {
            DanhGiaData data = new DanhGiaData();

            cmb.DataSource    = data.LayDSDanhGia();
            cmb.DisplayMember = "TENDanhGia";
            cmb.ValueMember   = "MADanhGia";
        }
        public int LayMaMax()
        {
            QLKTX.DataLayer.DanhGiaData data = new DanhGiaData();
            DataTable table = data.LayMaMax();

            try
            {
                int i = Convert.ToInt32(table.Rows[0][0].ToString());
                return(++i);
            }
            catch (Exception e)
            {
                e.ToString();
                return(1);
            }
        }
        public void Sua(QLKTX.BusinessObject.DanhGiaInfo info)
        {
            DanhGiaData data = new DanhGiaData();

            data.Sua(info);
        }
        public void Update()
        {
            DanhGiaData data = new DanhGiaData();

            data.Update();
        }
        public void LayDSDanhGia(DataGridView dg)
        {
            DanhGiaData data = new DanhGiaData();

            dg.DataSource = data.LayDSDanhGia();
        }