Report connected with Store Procedure in asp.net

I have report which is connected with a parameterised StoreProcedure.The rpeort is called from asp.net page.

In asp.net page i have a text box where user give the date parameter, and have a button named "Download".After giving the data parameter in text box if user click on download button the report would be downloaded as per data parameter to the user selection path.

Can any one help how it should be possible.You can use SQLQuery property of the CR and write query based on the user selection and pass itsql