I am migrating my application from ASP to ASP.Net. In ASP the report sort fields could have been added dynamically (<reportobject>.RecordSortFields.Add) using the report document object model. However, I am not able to do the same using the crystalreports.net object model. All I have is ReportDocument.DataDefinition.SortFields collection which does not provide a sort method. Any idea how I can achieve this in .Net?