Thanks for your detailed descriptions. It is much helpful.
I believe there is a bug with the new version -
It used to be that when we didn't have any data in the DataTable, the tags would disappear. Now, they are still there after running the report - do you know why?
No, it's not a bug. Actually, now, the valid markers would remain placed into the worksheet whether the source datatable is empty. I think we did support this feature upon some user's request and is worthwhile for some reason you know.
OK, we will check the feasibility to erase them if the source datatable is empty. And by the way, in the mean time, you may try to ease them using Aspose.Cells APIs (if the related datatable is empty). e.g., Cells.DeleteRange() method.
I am not completely clear about your requirement. We appreciate if you could provide us the sample template file and other details etc., we will check the feasibility if it can be implemented using Smart Markers grouping options.
After checking your template file i.e.., "Sample.xls", Aspose.Cells can support multiple groups with Group option: i.e.., Group:Normal,Group:Repeat,Group:Merge. Kindly find enclosed the attachment (the zip file contains some template files) for reference for your requirement.
In grouping data for Smart Markers (see the complete topic: http://www.aspose.com/documentation/.net-components/aspose.cells-for-.net/smart-markers.html), as you already know, there would be always summary row(s) in b/w details when the markers would be processed accordingly. The summary row(s) are inserted dynamically too. I am not sure your need completely but I think as I shared the summary rows are inserted dynamically in b/w the cells, so logically it might not possible that your static data will be placed in your desired positions.
Aspose.Cells continuously enhanced the rendering features to make them more robust and efficient with lots of enhancements, The charts and other drawing objects would be retained as they are in the Excel file when rendering the Excel workbook to PDF file format. Aspose.Cells’ Chart to image and Chart to PDF features produce results with high fidelity and accuracy.