using View State how it is possible

hi,
in my application on the load event dropdown will bind from database,
on select particular id corresponding records will display in gridview.
there is a button in page on click it will go to second page.
in second page a button there. on click event it will go to first page.
on reaching first page, the screen should be same. ie gridview with same record.

how it is possible using view State.