Normally in SSRS reporting, to create a report we define a datasource, then we define query, select layout of report and other properties. Then at run time Reporting services fire the query provided at design time and fetch dataset/datatable and bind the data with report structure/grid. My rdl reports are already there hosted on server, at run time I want to substitute data fetched by reporting engine in report with my data. Due to some constraints I cannot allow reporting engine to query my database. Now is it possible that I fetch the data by myself from any data source, create dataset/datatable of values and pass this dataset/datatable to reporting engine to just bind it with the report? So essentially what I want from reporting engine is: not to fire query defind at design time but take my dataset/datatable which is same in terms of structure and everything except data values to the dataset/datatable which reporting engine would have get after firing the query. Is there a way to achive above thing using RDLobjectModel or ReportService2010 or ReportExection service or combination of these or may be something else?