Error: Somsome parameters or credential values are missing

Question

I have the drill through working to a certain extinct I can drill down through each rdlc via hyperlink When I get to the last report  on the reportview it has a option to go back to the parent report when I click that button I get a error that saids some parameters or credential values are missing anyone familiar with this error how can you tell parametes are missing when I step through I seem to have all the parameters I need

David Smith · Answer

This is a example of what i have below via code I dont know what im missing case Example.rdlc : DateTime DateTime = Convert .ToDateTime(report.OriginalParametersToDrillthrough[0].Values[0].ToString()); genericDataSet.EnforceConstraints = false ; this .report.ReportEmbeddedResource = report.ReportEmbeddedResource; this .rDataSource.Name = Datatable ; this .rDataSource.Value = this .BindingSource.Filter = TimeStamp = # + DateTime + # ; this .rDataSource.Value = this .Generic_DatatableBindingSource; this .titleParameter = new ReportParameter ( Title  this .BookTitle); this .report.SetParameters( new ReportParameter [] { titleParameter }); this .report.DataSources.Add(rDataSource); this .report.Refresh(); break ;