How To get a column name when OnItemCommand is fired

[KMILO]

Hello,

I have a OnItemCommand event in the datagrid that could select all the row
in it by a linkbutton, the problem is that there are 7 different columns to
select and the server side function have to know which column the user
select, in the internet samples always appears this line "e.Items.Cells[x]"
having x like a column number, never gets dinamically the column number of
the item clicked, so the question is somebody knows how I can get the
clicked column name or number???

Thanks In Advance

KMILO