gridview

U must try to use row click event , your question is tricky . By the time i m working on it.

i think you didn't get my question.
 suppose there are 5 rows in grid view with value as
a
b
c
d
e

now i drag c to first row, b to second last row, then gridview should become as

c
a
d
b
e

the row swaping should be by dragging the row to desired location in gridview. and at last i should get row index value of each element on code behind i.e.,
c----1
a----2
d----3
b----4
e----5

see this link
http://www.aspdotnet-suresh.com/2012/09/how-to-convert-rows-to-columns-in-sql.html