how to auto filled txtbox when i click on send button in as

Hi frnds

how to auto filled txtbox when i click on send button in asp.net

I used gridview in a page . and i am dispalying data on grid from the data base .

in this grid i used link button like send and if click on send button another page is open where i kept some txtbox.

my issue is -- when i click on send button and open another page like txtbox1 txtbox2 so this txt should be auto filled means details which

i clicked on gridview row how to this