Resetting a variable for new group

I have a report that simply counts the number of times a field is true.

This works fine for the first group, but then falls down. The variable continues counting, how do I reset it for every group.

Here is one of the formula I am using:

Shared numberVar CountOfAwaitingOutcome;

If {tbl_Enquiry.AwaitingOutcome} = "Yes" Then
CountOfAwaitingOutcome := CountOfAwaitingOutcome + 1

The whole report is grouped by the type of procedure... So for example

There may be 3 waiting for Botox, and 1 waiting for Hip.

My reports shows

Botox 3

Hip 4

I want it to show

Botox 3

Hip 1

Can anyone help?

Many thanks

Mark

How does your forumla know when it is finished with a particular group?

Currently, it doesn't. But I want it to know when the group changes as i need to reset it.

Don't actually count with a shared variable on your detail record, create a separate formula say AwaitingOutcome10 with

If {tbl_Enquiry.AwaitingOutcome} = "Yes" Then 1
Else 0

Drop that on the details section. Next insert a summary field ("Sum" calc type) on the AwaitingOutcome10 formula for your Group "Type". Last if so choose insert a summary ("Sum" calc type) on the Report Footer for a grand total count. You can suppress the AwaitingOutcome10 formula in the details section once you confirm the totals are working correct.

To clear/reset a shared variable you need to create another formula and place it in the section where the variable should be reset.

Code:

---

Shared numberVar CountOfAwaitingOutcome;

CountOfAwaitingOutcome := 0

---

In this case, put the formula in the Group Header section and Suppress it.