Tracing Errors

PixelPointer

When working with Fast Reports, is there a way to trace errors within a report. I am an end user of the Fast Reports control, not the programmer. I keep recieving an error saying that I am using an invalid field, but it does not show me where it is picking up this error.

Any assistance would be appreciated. If you need more details, please let me know.

Thank you.

gordk

if you are writing script on the code page run the script from the runscript button in the code window it should stop with the cursor positioned at the error.

PixelPointer

Thanks, GordK. IThat is where I run it from, and at the end of the report, I get an error message, "Unknown variable or datafield", and it happens to be named the same as the first item in my first grouping.

I actually had some code in the obp event of the footer of my first grouping,

procedure gfSummaryGroupOnBeforePrint(Sender: TfrxComponent);
begin
       Set(<extSGRevenues>, Sum(<Price>));
       Set(<extSGProfitDollars>, Sum(<ProfitDollars>));
end;

then decided that I needed to use the report totals, so I moved the code into the obp event of the Report Summary.
I actually had some code in the obp event of the footer of my first grouping,

procedure ReportSummary1OnBeforePrint(Sender: TfrxComponent);
begin
       Set(<extSGRevenues>, Sum(<Price>));
       Set(<extSGProfitDollars>, Sum(<ProfitDollars>));
end;

After that, the error appeared, but it does not make sense to me. When I run the script, all I get is a message box, with one OK button. After I press it, all I see is the report itself.

gordk

in the summary band it no longer nows what or where "price" is
aggregates need to know what they are aggregating as all the databands have finished processing

the reason it worked in the footer is that it was in a logical place
the full syntax of the sum function is
sum(datafield or varname,bandname,1)
where bandname is the name of the databand where the datafield or var is located
the integer parameter indicates what type of agrregation: running total, include non visible records.

PixelPointer

Ah. Yes, that makes sense. I should have thought of that myself, but then I wouldn't have used this excellent forum. :-)