We have a reportViewer control on a web page that renders reports in Remote ProcessingMode. However, it does not access the reports from the SSRS server, it loads them from our own repository, and sends the Stream of the RDL file to LoadReportDefinition. This works fine when there are no SubReports. However, I am not sure how to handle SubReports. I know that in Local ProcessingMode you have to handle the events to load the SubReports manually, and that in normal Remote ProcessingMode when running a report stored on the server, it handles the SubReports for you. But what is the process for handling SubReports for Reports in Remote Processing mode that are rendered with LoadReportDefinition? Should I handle the event and load the SubReport manually somehow using LoadReportDefinition again? Or is it simply not supported?

Hi jth001, From your description, do you mean the ReportExecutionService.LoadReportDefinition method or the LocalReport.LoadReportDefinition method? If it is the former method, subreports and data source references with relative paths are not supported using this method. However, absolute paths to catalog items can be used. For more information, please see: ReportExecutionService.LoadReportDefinition Method If it is the latter, you need to call LoadSubreportDefinition method and provide data for any subreports. Fore more information, please refer to: LocalReport.LoadReportDefinition Method LocalReport.LoadSubreportDefinition Method Regards, Mike Yin TechNet Subscriber Support If you are TechNet Subscription user and have any feedback on our support quality, please send your feedback here.

It is the ServerReport.LoadReportDefinition, which I believe has the same functionality as the previous ReportExecutionService.LoadReportDefinition I've searched elsewhere online and found that as of November 2011, SSRS did not support Sub Reports when using ServerReport.LoadDefinition to load the report unless the Sub Report was stored in the SSRS server, which is not what we can do, because we have to dynamically change too many things, including the database connection at runtime. So it looks like we'll have to use LocalReport.LoadReportDefinition, which means writing all the code to handle Sub Reports, and all the code to populate our own Parameter entry fields, and all the code to extract the SQL Queries from the RDL files and execute them ourselves. The only other possibility is that the next release of SSRS includes support for Sub Reports when using ServerReport.LoadReportDefinition. If anyone knows whether the next release of SSRS will include it, that would be great information. I've seen multiple requests to Microsoft to make this enhancement, going back as far as 2008, but the response is always that they will consider it for the next release, so I'm not getting my hopes up.