Invalid pointer error on setting reportviewer parameter values

Question

Post Author: erika
CA Forum: General
Hi
I'm using the crystal reports version bundled with VS2005, everything on the web reportviewer works perfectly until I set any parameter values. I then get the following error:
Message: "Invalid Pointer",
Source: rptcontrollers.dll,
Stack Trace:     at CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass.GetPage(PageRequestContext pPageRequestContext)\r\n   at CrystalDecisions.ReportSource.EromReportSourceBase.GetPage(PageRequestContext pageReqContext)\r\n   at CrystalDecisions.CrystalReports.Engine.FormatEngine.GetPage(PageRequestContext reqContext)\r\n   at CrystalDecisions.ReportSource.LocalReportSourceBase.GetPage(PageRequestContext pageReqContext)\r\n   at CrystalDecisions.Web.ReportAgent.GetPage(Boolean bSeparatePages)\r\n   at CrystalDecisions.Web.CrystalReportViewer.OnPreRender(EventArgs e)
My rptcontroller DLL version is: 10.2.0.1093
The following code is how I set the parameters:
ParameterFields pfsReport = new ParameterFields();
ParameterDiscreteValue pdvReport = new ParameterDiscreteValue();
pdvReport.Value = oReportParameterValues.ToString();
ParameterField pfdReport = new ParameterField();
pfdReport.CurrentValues.Add(pdvReport);
pfsReport.Add(pfdReport);
rpvView.ParameterFieldInfo = pfsReport; //rpvView = ReportViewer
rpvView.ReportSource = rptReport; //rptReport = ReportDocument
rpvView.RefreshReport();
Has anybody got any answers to how I can fix this, or maybe another way to add the parameter values that doesn't give the same error?

Answer 1

This is likely an issue with order of operations.  I would try setting the dataset first, then pass parameters.  if that is what you are already doing, reverse the order and see what happens.