How to use dataset as Crystal report's source

[faisalmushtaq]

Hello to all brains,
i am relativly new to this programming world and i need tons of favor from u guys.My problem i want to use a dataset's table as my report source.Report also takes some other parameters.Now my first question is how do i set datatable as my report source and my 2nd question is how to pass parameters.Although i have attempted to do this by the below mentioned code.

// Making report instance

Reports.RptNewModifiedInsurances objRptNewModifiedInsurances = new Reports.RptNewModifiedInsurances();
 
//Making and passing parameter to report
 
           objParameterField = new ParameterField();
            objParameterField.Name = "@FromDate";
            objParameterDiscreteValue = new ParameterDiscreteValue();
            objParameterDiscreteValue.Value = dtpFrom.Value;
            objParameterField.CurrentValues.Add(objParameterDiscreteValue);
            objParameterFields.Add(objParameterField);
 
            objParameterField = new ParameterField();
            objParameterField.Name = "@ToDate";
            objParameterDiscreteValue = new ParameterDiscreteValue();
            objParameterDiscreteValue.Value = dtpTo.Value;
            objParameterField.CurrentValues.Add(objParameterDiscreteValue);
            objParameterFields.Add(objParameterField);
 
 
            ReportViewer objReportViewer = new ReportViewer();
            objReportViewer.MdiParent = this.MdiParent;
 
            objReportViewer.crViewer.ParameterFieldInfo = objParameterFields;
 
// Assigning datatable as report source,here it throws exception
 
objRptNewModifiedInsurances.SetDataSource(BusinessLayer.BusGeneral.ds.Tables["usp_rp_new_mod_insurance"]);
 

The error message is "The report has no tables."

Please help me this time :-( I am waiting for your kind response.