asp.net - How to show data in a page temporally untill user confirms them? -

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i developing website using asp.net. have page users can put advertisements website. has select location , ad category type contact details , post ad. after finishing has press button proceed.

then hope took him new page showing him how ad show in website. if has modifications can go , again has press proceed button after editing it. if satisfied can confirms ad records should add database.

so wondering temporary keep these data , show in page?

my idea store these details in sessions or in cache. think session good. people saying should avoid using sessions @ cost because eat ups memory in server. going display not critical data. dont want security regarding data. tell me best way show user's entered data in page temporally until user confirm it?


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