Can u try make this output from code behind?

This is basically user can post comment and anyone can reply for any comment.
UId ParentId  Description
--------------- --------------
10   NULL         aaaaaaaaaaaaaaaaaaaa            ---This is Main Comment(1)
11   NULL         bbbbbbbbbbbbbbbbbb           ---This is Main Comment(2)
12   NuLL         ccccccccccccccccccccccc            ---This is Main Comment(3)
13   NULL        dddddddddddddddddd           ---This is Main Comment(4)

14   10             eeeeeeeeeeeeeeeeeeee            ---Reply msg for the (1)
15   10             fffffffffffffffffffffffffffffffffff             ---Reply m ...