Run a page silently

Hi All,

How can you run a page in your site 'silently'? i have 2 pages, front.aspx and back.aspx.

When submit front.aspx page, the client will again see front.aspx page after submited, during submitting, i need to run code logic inside back.aspx and update the database, the logic is related to controls only exist in back.aspx, so cannot be moved to a class and be reuse in front.aspx

i think i almost need something like this in front.aspx code:

Back backPage = new Back();
backpage.run();

Any Ideas? Many Thanks.
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