InfoPath Dev

I have 13 optional section inserted with repeating table and each
section has a subtotal field in it.

At the end of the form I have a grand total box, which is the sum of
all the sub-totals in the optional sections.

However, the grand total doesn't show up unless i open all the 6
optional sections. But I don't need all 6 to open at one time. Some
time I need 2 or 4 sections only.

So how can I show the grand total, without opening 2 or 3 sections in
my form.

Hi mmahmoud,
in the datasource I'd try to move the sub-totals outside the group where they are (for example putting them in the same group of grand-total) leaving them in the original optional secting.
Bye!