ASP NET and Crystal Report Dynamic

Hi, i have some problem to show crystal report in asp.net page so i want to create asp net application that can read crystal report online,

i have many crystal reports, and i need to make at least 2 asp.net page in my application to show crystal reports online,

first page is to choose crystal report file and fill parameter field then,

second page is to show the crystal report.

there are many tutorial about asp.net and crystal report but it always about one page for one crystal report, 

meanwhile, my problem is i must show many crystal reports in one asp.net (not in same time)

there are many existing crystal reports, with different table but have 1 odbc (and i'm not created that reports)

and i need to show it without know what table is use.

i use visual studio 2013, asp.net vb, and sql server 2008.