问题
I have a column group in a Crosstab that is a String.
It uses the field SectionName.
There is another field, SectionID (Integer), that I want to sort by.
I put $F{SectionID} in the Sort By Expression but I get the error:
1. Field not found : SectionID
This field is in the dataset. I can add a group on this field and display it. When I try to use it in sorting I get the error.
Is it possible to display one field in the column group header but sort by another?
Thank you
回答1:
Yes you need to create another row group for you SectionID and make sure it is first -tweak in the XML - and then remove the text box from the visual display
来源：https://stackoverflow.com/questions/8172301/crosstab-sorting-in-jasperreports