data grid view scroll bar

Hi all

 

i have 1000 rows in datagridview with scrollbar option. i have perform some calculation row by row. initally only 20 rows only user can see.

 

suppose i am processing 21 row user can not able to see the details of the row data.

 

manually user has to scroll down using mouse then only they will know the details of the data.

 

it  is possible to automatically scroll bar movement when row is going down.

 

please help me.