Hi All, I am trying to implement an application that displays a report using the report viewer on Windows Form. The report also consists of a sub report.
Without the sub report, I am able to display the report with no problems. However, after I added the sub-report in, I receive the error "Some parameters or credentials have not been specified".
I have implemented in the following manner: I call on the SubreportProcessingEventHandler before adding the datasource to my parent report. In the event of a SubreportProcessing, I will add the datasource for the subreport.
I have also tried implementing with a sub report that does not need any parameters. However, I still receive the same error "Some parameters or credentials have not been specified".
Is there any mistakes which I have made? Thanks!