Crystal report refresh issue in visual studio 2010

I have deployed an asp.net web application in IIS server. In which I have used Crystal Report (Version 13.0.0.99) for some basic reporting options. All the functionalities are working fine except the loaded data. The filter which I intend to pass as a parameter works fine in initial page load (All those parameters are just WHERE clauses which will be applied to SQL query). When I use refresh button in the Report all the filters removed automatically and all the records are being taken from the database. It looks so weird that how this is happening. Please help me out to overcome this issue. Thanks in advance.