NEED Help in crystal reports using C#.

//Create an instance of the strongly-typed report object crReportDocument = new Report(); //The viewer's reportsource must be set to a report before any //parameter fields can be accessed. CrystalReportViewer1.ReportSource = crReportDocument; //Get the collection of parameters from the report crParameterFields = CrystalReportViewer1.ParameterFieldInfo; //Access the specified parameter from the collection crParameterField = crParameterFields["paramfield1"]; //Get the current values from the parameter field. At this point //there are zero values set. crParameterValues = crParameterField.CurrentValues; //Set the current values for the parameter field crParameterDiscreteValue = new ParameterDiscreteValue(); crParameterDiscreteValue.Value = param1value; //Add the first current value for the parameter field crParameterValues.Add(crParameterDiscreteValue); //Next parameter //Access the specified parameter from the collection crParameterField = crParameterFields["ParamField2"]; //Get the current values from the parameter field. At this point //there are zero values set. crParameterValues = crParameterField.CurrentValues; //Set the current values for the parameter field which allows multiple values for (i=0;i < WorkIDs.Length; i++) { crParameterDiscreteValue = null; crParameterDiscreteValue = new ParameterDiscreteValue(); crParameterDiscreteValue.Value = Param2values[i]; //value array param2values crParameterValues.Add(crParameterDiscreteValue); } crReportDocument.SetDatabaseLogon("loginid","password");

I had the same problem and I had to declare formulas besides parameters, n' I passed the values by code. Something like this: rptReport MyReporte = new rptReport(); MyReport.DataDefinition.FormulaFields["MyFormula1"].Text = "\"" + Value1 + "\""; MyReport.DataDefinition.FormulaFields["MyFormula2"].Text = "\"" + value2 + "\"";