在这里查看一些示例如何编辑datagridview的数据，然后将按键（如你所述）事件应用到它的行中那里的选举活动..

在vb中编辑datagridview行.net [ ^ ]

http://www.dotnetperls.com/datagridview-vbnet [ ^ ]

http://www.programmersheaven.com/mb/VBNET/419637/419637/editing-datagridview-cells/ [ ^ ]

http://www.codeguru.com/csharp/.net/net_data/datagrid/article.php/c13041/Add-Edit-and-Delete-in shellsGridView.htm [ ^ ]

Sir, I need help on how to edit value in datagridview.

In my datagridview has three columns(ItemName, Price and Qty) I want to edit the qty column when I press F8(-1) and F9(+1) based on the selected row.



Thanks.

See some example here how to edit data of datagridview, then apply key press(as you mentioned) event into it''s row selection event there..
editing datagridview row in vb.net[^]
http://www.dotnetperls.com/datagridview-vbnet[^]
http://www.programmersheaven.com/mb/VBNET/419637/419637/editing-datagridview-cells/[^]
http://www.codeguru.com/csharp/.net/net_data/datagrid/article.php/c13041/Add-Edit-and-Delete-in-DataGridView.htm[^]