DataGridView单元格输入全角转半角

        //编辑单元格控件发生事件
        private void GridDetail_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
        {
            //获取列序号
            int columnIndex = GridDetail.CurrentCell.ColumnIndex;
            //单元格转化成文本框
            TextBox tb = e.Control as TextBox;
            //委托单元格KeyPress事件
            tb.KeyPress +=new KeyPressEventHandler(tb_KeyPress);
        }

        //单元格KeyPress事件
        private void tb_KeyPress(object sender, KeyPressEventArgs e)
        {
            //全角转半角
            if (e.KeyChar >= 65296 && e.KeyChar <= 65305)
            {
                e.KeyChar -= Convert.ToChar(65248);
            }
        }