How to show content in saved items in c#?

Question

Hai Friends,


i ve the application like

travel.aspx
============

departuredate = textbox,
from = textbox,
to = textbox,
requestId(visible false)

add(button)
save(button)
submit(button)
after pressing the button entire details ll show on gridview

i declare the request as global variable in these page.
after fill the details users choose "SAVE" means ll be redirect into HOME.aspx page.

in that page draft items contains above details like

Min(departuredate)(link Button) from to

when the user press the date ll re-direct "VIEW.aspx" in these page ll display what i had enter the details shown on it
as refercences these link

http://hightechnology.in/how-to-redirect-to-another-page-by-click-on-linkbutton-in-gridview/

i passed the global variable from "travel.aspx" into "View.aspx"


(i had done these much)

now i m facing the problem is

when i tried to add sum dates in "VIEW.aspx" it not shown on grid view after give SAVE(button) i can able to see ?

what was the problem?