How to layout a subreport based on main report and another subreport!

Question

Hello all,
I got an issue how to capture the value at a run time and loop through group in Crystal Report. My project is complicated (main report and sub report using stored procedure with parameters as datasource and a lot of formula fields pass between main report to sub report, but I try to explain it as simple scenario as following:
School 1
Main report layout: (Group by Class)
===============================================
Class A
Sub report: ( This result from the stored procedure at run time and only having two rows when running stored procedure)
Boy : 200                  
Girl : 150
================================================
Class B
Sub report
Boy: 50
Girl: 100
=================================================
Class C
Sub report 
Boy: 259
Girl: 80
Please pay attention on the above layout what I am done on reports. My question is how to produce another report that used the previous values and having the following layout:
School Summary
Class  |  Boys  |  Girls  |  Student
A        |   200    |  150   |     350
B        |     50    |  100   |     150
C        |   260    |    80   |     340
Please give me some ideas how to solve above problem. I know that Crystal Report can use shared variables via formula fields. I am wondering whether or not how to capture the specific value at the run time? Is it posible to make it working in Crystal Report or I have to write a stored procedure in the backend??? Thanks in advance.

Answer 1

Hi,
When we look at your report lay out, for each class group you have boys and girls count which is coming from sub report.
I think you placed the sub report in the Class group and linked with Class.  If that is the case you will get all information in the sub report itself.
In the sub report, create a running total with shared variables and bring this value to main report to display at the end of the report.
Eg: To get Class from sub report to main report :
Whileprintingrecords;
Shared stringvar class;
class:=classchar(13);
Place this formula in your sub report group and create one more formula
Whileprintingrecords;
Shared stringvar class;
class;
Place this formula in your main report report footer, this will bring your classes into main report. Follow the same process for boys and girls numbers.
Thanks,
Sastry