@Mudassar
Thankyou for the reply sir.
Sir there are "Filters" in .aspx page as well as "Report viewer control" is also there in same .aspx page (as per my requirement)
so when I am doing filter on "button" click, report page opens in same .aspx page. (below filter), which is not my requirement.
I want that when I do filter and click on "button", data of Report viewer should open in new browser tab not in same .aspx page (below filter)
Please reply.