WinCE系统中DataGrid键盘事件处理

        /// <summary>
        /// 订单明细键盘捕捉事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void dgProduct_KeyDown(object sender, KeyEventArgs e)
        {
            try
            {
                if (((e.KeyValue >= 96 && e.KeyValue <= 105) || e.KeyValue == 8) && editCell.ColumnNumber > 0)
                {
                   DataTable dt = (DataTable)dgProduct.DataSource;
                    string zhi = "";
                    if (e.KeyValue == 96)
                        zhi = "0";
                    if (e.KeyValue == 97)
                        zhi = "1";
                    if (e.KeyValue == 98)
                        zhi = "2";
                    if (e.KeyValue == 99)
                        zhi = "3";
                    if (e.KeyValue == 100)
                        zhi = "4";
                    if (e.KeyValue == 101)
                        zhi = "5";
                    if (e.KeyValue == 102)
                        zhi = "6";
                    if (e.KeyValue == 103)
                        zhi = "7";