How Edit a crystal report with only data obtained on an ASPX form ?

Question

Hello I obtains datas issues from SqlServer Database, in an .aspx form. On this form, i inserted a button wich when one clicks above, loads a report .rpt and must print it. This is my problem : How to assign at the zones of my report, only data obtained on the aspx page and not all those of the tables of the BDD? Langage used is C# I thank you in advance for your assistance. Christine