We are running Crystal Reports on a Windows Server 2008 with .NET framework 3.5 SP1.
I have seen many causes of the general error \"The request could not be submitted
I too have come across such issue, where I figured out the Column having Photographs was creating the issue. The way out was to convert the photograph (Datatype Image in SQL Server) from .NET Data set to byte and then save it as Bitmap. After , that this same BMP file can be converted to bytes and replaced to appropriate column of the identified row. By this the space reduced to a great extend and then after exporting the Report document and Datatable was disposed properly.