Putting a sum before the details in Crystal Reports

Hi

I am producing a Crystal Report, and need to show the "Total Weight" at the top of the report. However the data for this calculation is in the details that come after it, so the value is not calculated correctly

If i put it at the bottom, after the details, it calculates fine, but that's not allowed for this unfortunately

How can i calculate this correctly and show it in the right position?

Thanks

Scott
Grant SurridgeIT ControllerAsked:
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vetaldjCommented:
You can create a formula and place it to the Report Header with something like this inside(depends what you need):

WhilePrintingRecords;
Sum(<your field>)

It should works. You can provide what exectly you calculation should do so we can provide you with more accurate formula.
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Ido MilletProfessor of MIS at Penn State Erie and Owner, Millet SoftwareCommented:
You are probably using a Running Total.  Change the approach to a conditional total or, if this is not possible in your case, use a subreport.

If you describe the logic of the total it would be easier to address your question.
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dhobaleCommented:
Hi Scott,
You will have to export your report to a table in database and recreate it. Just like creating table of content / index table for crystal report. Without it, you won't be able to display total in header.
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dhobaleCommented:
There is an interesting article regarding your question here:

http://kenhamady.com/cru/archives/304

see if it works for you.
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Grant SurridgeIT ControllerAuthor Commented:
Vetaljd solution has sort of worked, was able to get the sum to show correctly, until i realized i wasn't suming my group correctly. So i changed the sum in my group:-

CDbl (({#TotalQtyGroup}*{@ItemSizeNo})/1000);

to produce a net weight formula.

Now the report won't let me summarize the net weight formula. It says that this field cannot be summarized.:-

WhilePrintingRecords;
Sum({@Net Weight})
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mlmccCommented:
Running totals are calculated in the last pass through the report and the value isn't known until the report is complete.   Since the summaries are run in an earlier pass they running totals can't be summarized.

You will have to do a manual summary using formulas and variables.

mlmcc
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James0628Commented:
What do the {#TotalQtyGroup} running total and the {@ItemSizeNo} formula look like?  It might be possible to change your current formula to something that can be summarized.  That's the only way to get a total based on the data in this report at the _top_ of the report.  You could do a "manual summary", as mlmcc suggested, but if your calculations are based on a running total, you're not going to get your total until the end of the report.

 If you have to use a running total in the calculation, you may have to use a subreport.  You'd put the subreport in the report header and it would read essentially the same data as the main report and produce the total for you.

 James
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