Hi,
I was searching for this answer too. Take a look at this:
http://msdn.microsoft.com/library/en...tomization.asp
You have to create first a CrystalDecisions.CrystalReports.Engine.FieldDefini tion object and set it up to the field that you want to sort, then set the DataDefinition.SortFields(0).Field with this value.
Follow the link and look closer...it will explain better then me! :)
Best regards
Abrahin