Hello Rohit,
Thank you for writing.
The BestFitColumns method is working with column group descriptions. If you want to also best fit the row headers you can use the
BestFitRowHeaders method and pass the levels for each of row group elements:
Regarding your other question, I can suggest using a custom localization provider returning an empty string for the messages which need to be empty:
This documentation article demonstrates how the localization provider can be instantiated and used in the pivot control:
https://docs.telerik.com/devtools/winforms/pivotgrid/localization/localization.
Should you have further questions please do not hesitate to write back.
Regards,
Hristo
Progress Telerik