Pass multiple values in crystal report

I am trying to pass 2 values that are generated from C# passed to MS SQL stored procedure through Crystal reports

so far i have this code

string username = Context.User.Identity.Name;
string date = DateTime.Now.ToShortDateString() ;
ReportDocument crystalReport = new ReportDocument();

crystalReport.Load(Server.MapPath(@"..\admin\CrystalReport1.rpt"));
crystalReport.SetParameterValue("@Username", username);
crystalReport.SetParameterValue("@Date", date);

crystalReport.SetDatabaseLogon("", "", @"dennislaptop-pc\SQLEXPRESS", "healthylifestyledb");
CrystalReportViewer1.ReportSource = crystalReport;

the above code is in the crystal report generation page the problem is when i try to pass the @Date Value to the stored procedure. the stored procedure works well but i am getting this error in C#

Invalid index. (Exception from HRESULT: 0x8002000B (DISP_E_BADINDEX))

any help how i can pass 2 parameter values ?

I've used a different method. If you create a CrystalReport C# will generate a class (and .cs) file for that report.

You can then create the report via ReportClass report = new CrystalReport1();

Then you can add parameters:

using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;

ReportClass report = new CrystalReport1();
report.SetParameterValue("companies", "Microsoft");
//or use the overloaded value for an array as 2nd parameter

But you need to have your reports created via C# (or maybe added to C# is enough) to create the class for the report.