SQL REPORTING 2008, 2012 - WHEN I CHANGE A PARAMETER WE HAVE ALWAYS A SCREEN REFRESH (POSTBACK)

hi,
my name is Pedro Mesquita, from Portugal Europe.
i have this problem with my client and it seems it is common to all other projects : i have a report with parameters depending on each other (but curiously this happens also with reports without depending parameters and the order for which thay are created
counts!) and when the user changes one parameter the screen (sql reporting front-end) does a postback and refreshs! is this by design by microsoft ?! the client wants to keep the previous rendered report to help him build the new one.
how can i avoid this?
microsoft help please?
best regards
Pedro Mesquita

Oh Microsoft.....
This means that we must build our front-end to control this "feature"....
AJAX would solve this....
Thank you.
Best Regards,
Pedro
Pedro Mesquita

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