how to making comment box

Make a simple Asp webpage

On that page drag one textbox and one button

set Textbox's TextMode property ="MultiLine"

On button click event you'll have to insert the comment in DB
(I'm supposing your DB have a table with two fields id and comment id is autoincrement)

//Open Connection
//Make Command
//Execute the command like this
//Insert into Table values('"+textbox.Text+"')";


You can get help on insertion from
here[^]