I have tried to understand the query shared by you but unfortunately have not been able to completely understand the concept. Can you please share the details of the environment where by you are using Aspose.Slides. Please also share that which version of Aspose.Slides you are using. Can you please also share that which version of SQL Server you are using and if you are using Report Viewer then do you have Report Viewer 2010 installed on your end. Please share the requested details so that I may help you further.