Report Viewer shows incorrect data when viewing pages from last to first

Question

Post Author: Fmorales
CA Forum: .NET
Hello.
I've made a huge report with Crystal Reports for Visual Studio 2005, and sometimes the Report Viewer show data with errors.
If I see all pages of my report in order, 1 first, then 2nd, 3, 4... until the last one.... The report is always correct.
If I see all pages in reverse order, 1 first (shown by default), then last one, then last one-1.... until 2nd.. All years show incorrect, except first one... 
In an outer section, for every year, there is a final row which shows summarize calculated data. The error consists in that every value of the row is 0.
It seems that Crystal Report calculates while showing, that's good.. but... Why does it ignore the data before when I see directly the last page?? It forces me to see all pages one by one in ascendant order to ensure data is correct.. I must fix that error.
The way I calculate data in the problematic summarize row is a bit complicated, but I'll try... Let's focus in one only column (the other ones are similar). The summarize value is a formula which simply show a global value :
WhilePrintingRecords;
CurrencyVar margenActual;
which is being increasing or decreasing along the group:
WhilePrintingRecords;
CurrencyVar actual:=actual+CurrentFieldValue; 
if {PresupPeriodifMesesAux_DS.TIPO} = 'PAGOS' then         CurrencyVar margenActual:=margenActual-CurrentFieldValueelse    CurrencyVar margenActual:=margenActual+CurrentFieldValue;
DefaultAttribute
It is placed in the backgrond property of a CrossTab cell in a hidden pre-section... Well.. I know it's a bit complicated, but I have to do that way because it was the only trick I found to make a summarize file before printing data summarized (that's why the line "CurrencyVar actual:=actual+CurrentFieldValue;" appeared in formula). So I also wanted to use this formula to acummulate "margenActual".
In the inner section I reset the actual value (this value always go fine):
WhilePrintingRecords;
CurrencyVar actual:=0; 
Before end of year I reset the margenActual value:
WhilePrintingRecords;
CurrencyVar margenActual:=0; 
I've tried multiple combinations (using WhileReadingRecords instead WhilePrintingRecords) but data is incorrect or I cannot get rid of visualization page's problem....
Any idea?
Thanks a lot

Answer 1

quote:
Originally posted by:
ntsiii
If you were previously using <mxXML> you WERE using
e4x.
So remove that tag, create an instance variable of the same
name, typed as xml, and in your result handler, do as VarioPegged
suggests, though I would cast/convert to xml first:
companies = XML(event.result);
trace(companies.toXMLString()); to look at your xml
var xlCompanies:XMLList = xmlCompanies..company; //all such
expressions return XMLList, never XML
trace(xmlCompanies.length()); //
Tracy
Ok so the ID of the mxXML was being interpreted as an E4X
variable at compile time?
I tried changing the name of the ID of the HTTPService call
from "marketData" to "MDATA" and assigning the variable marketData
to the result of the HTTPService query, which if I understand you
correctly should basically make everything work as it was before,
but it seems to be a problem.
when I try to run it puts an exclamation point on this line
<toolbox:TreeMap id="treeMap" width="1200" height="800"
dataProvider="{marketData}"
labelField="@cname" weightField="@amount"
colorFunction="{itemToColor}"
toolTipFunction="{itemToToolTip}"/>
That code refers to a SWC file. Apparently it wants
marketData to be a data provider. If I change the dataProvider
reference above to "MDATA" (the ID of the HTTPService) the App
compiles, but I get two errors at runtime:
TypeError: Error #1009: Cannot access a property or method of
a null object reference.
ReferenceError: Error #1081: Property @age1 not found on
mx.rpc.http.mxml.HTTPService and there is no default value.
What should I change this reference to? It won't compile if I
use the variable I made for the e4x results and it is reading
gibberish if I have it read directly from the
HTTPService....?