Editable Grid

hi
i am deepak new with asp.net2.0 tech.
i need a grid control in asp.net which behave like
datagridview control in window application
or flex grid in vb6.0
Actually i am working on a diagnotics software
in grid require manual entry and after completion of one row it automactially create a
blank row same as datagridview control in window application.
not require gridview control like edit,delete,select button inside grid

if it is not possible give any alternative solution

Thanks in Advance
Deepak