public void LayDSHocKiLenComboBox_DK_NamHoc(ComboBoxEx cmb, string MaNamHoc)
        {
            HocKiData hocki = new HocKiData();

            cmb.DataSource    = hocki.LayDSHocKi_DK_NamHoc(MaNamHoc);
            cmb.DisplayMember = "TENHOCKI";
            cmb.ValueMember   = "MAHOCKI";
        }
        public void LayDSHocKiLenComboBox(ComboBoxEx cmb)
        {
            HocKiData hocki = new HocKiData();

            cmb.DataSource    = hocki.LayDSHocKi();
            cmb.DisplayMember = "TENHOCKI";
            cmb.ValueMember   = "MAHOCKI";
        }
        public int GetMaSo(DataGridView grid)
        {
            HocKiData Dat = new HocKiData();
            int       i   = Dat.GetMaxMaSo();
            int       j   = MaxMaSoInGridView(grid);

            if (i < j)
            {
                return(++j);
            }
            else
            {
                return(++i);
            }
        }