Expand Grid view with a comment box and 2 button

Hi All,

Please help me with code like 

a gridview that having coment box and two button.

How it should work like 

In a row the when the user clicking one comment box should expand and having two button like procees and close

when the user type some thing in the comment box and press procees or close button the row should dissapear.

Please advise with codings.

thanks in advance.

regards 

rengith