//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);             }         }