I have a problem while performing grouping.
I created an expression from a variable that comes from my subreport ...
Yes, the expression of the variable is created on the subreport and it goes to the main report.
I didn't initiate any value an the main report, I just created variable without a expression linked to the main report, which stays in the detail section.
No, the subreport is found in the detail of report. I'd like to group together the datas with subreport a variable that comes from itself. So it can group the crosstab, which is in the subreport.