Crystal report visual studio 2013 Not visible while running

Hi

I am using SAP CR for VS 2013.

I created the report using a stored procedure which is having 3 input parameters. I have tried to display it in an aspx page. I used Crystal report viewer and CrystalReportSource. In design mode I can see a preview of the report but while running the page I could not see anything. Also I need help to pass the parameter from CS page.

Please help

Regards

SP