How to add another row with above data using datagridviewlin

Hi All,

I am using datagridviewlink column. when i clikc on that link it display another row with the above data in daagridview
Ex:-- Datagriview
Senario is a database value
Usernetry is a Textbox column
Link Link column

 Senario    Userentry  Link
  123                   Add
  456                   Add
  789                   Add

when i clik on link column from datagridview, it will add another row with prevoius data
Ex:--
Senario    Userentry  Link
 123                   Add
 456                   Add  Here I am clik on 2nd row
 789                   Add 
Out Put
Senario    Userentry  Link
 123                   Add
 456                   Add
 456                   Add
 789                   Add

Please any one give me the suggestion.

Regards,
Sucharitha