sort on sub summary

[mleiser]

Here's my problem (fm6). I have 2 files, parents and students. Students have elementary and high school students. I need a list of all parents with their elemntary children sorted by number of elementary children they have.

The key from parents to students and back is parent id.

I created a calc field in students that comes up with a 1 if elementary child(call field EL). In parents I have a field that is the sum of that field in students (call it SUM_EL).

Then in parents I have each record with family name and a portal of child with grade. I can sort it by SUM_EL but the problem is I can't just choose elementary children from students. It does all.

So now I go to the student file and create a summary field of count of parent id (call it SUM_FAM_CHILDREN) and in the report have a sub summary part based on parent id. I then want to select only elemtary children (works okay) and sort by last name, parent id and grade but you can't sort on a summary field!

I hope this makes sense to somebody. ANy ideas?