I am trying to use the report viewer with parameters and had a bit of a snag, I tried to reproduce your own example but I get an error message: "Error CS1503 Argument 1: cannot convert from 'Syncfusion.Reporting.Models.ReportViewer.ReportDataSource' to 'Syncfusion.Reporting.Web.ReportDataSource'"
Pls find atached the code from my webapi controller, is it a problem with the report version? I am using latest Reporting nuget packages V 4.1.025. without using parameters, I've gotten the report to work fine. Note my only objective is to use parameters that are hidden and passed to the report at runtime I was thinking a simple solution maybe using session variables? Thanks in advance