I am using ireport 4.0.1.
I've created a cross tab report which shows sum of student receipts on a monthly basis. Initially, I created the report with one row group (student) and added another group for opening balance (group1).
below is the screen shot of the report
I've created a variable to sum opening balance as
the report has created group1/Detail and group1/month_year sections for opening balance group.
I want to drag sum_op_bal in the group1/Detail section but its not allowing me to do so. I have also tried dragging a Field item in this section but that didn't work either.
Please can someone help with it?