Access Violation

rbuser

I have installed Delphi XE5 on a new Windows 7 machine... NexusDB 4 along
with version 15.01 of Report Builder. I'm moving from a Windows XP
machine - Delphi 2010... NexusDB 3 - with version 14.06 of Report Builder.
When I moved my source code to the new machine I find that most of my
reports work with no problem; however, I have a couple that are getting an
Access Violations. With a little experimentation I find when the data field
is of type "Double" in the report data tree I get the error. Has anyone
else encountered this? Any solution?

Joe Hutchins

nicocizik

Hi Joe,

Please upgrade your version of ReportBuilder to the latest (15.04) and
retest. If, after upgrading you still experience this issue, please
create a simple example that demonstrates the problem and send it to
support@digital-metaphors.com in .zip format and we'll take a look at it
for you.

Contact info@digital-metaphors.com with your serial number and
purchasing email address for upgrade instructions.

rbuser

Where do I go to download version 15.04... the last email instructions I had
were for 15.01.

nicocizik

Contact info@digital-metaphors.com with your serial number and
purchasing email address for upgrade instructions.

rbuser

I've upgraded to version 15.04 of ReportBuilder Pro. I still get the Access
Violation error. The problem seems to be between ReportBuilder and NexusDB.
I'm using version 4.0005 of NexusDB. The field that is causing the error is
defined as type "Extended" in NexusDB. I'm using a TppReport with a
TppDBPipeLine, connected to a TDataSource, connected to the TnxTable. I
have no problem printing other fields from the table; however, when I
attempt to add the "Extended" field to the report I get the Access
Violation. In the ReportBuilder datatree the field is defined as type
"double", but that is what was defined in the datatree with the older
version software. (ReportBuilder 14.06 and NexusDB 3.04 - Delphi 2010).

If I build a file using KbmMemTable and copy the data from the NexusDB table
to the KbmMemTable the report will work; however, it won't work printing
directly from the NexusDB Table.

It is difficult to send you a simple example since it only comes up with
ReportBuilder printing from NexusDB. I'm unable to print an "extended" type
field from a NexusDB table. I don't know if the error is from ReportBuilder
or from NexusDB (or me).

Any help or suggestions is appreciated.

Joe Hutchins

nardmoseley

Hi Joe,

I helped another customer who reported an issue with NexusDB and 'Extended'
fields.

This is not a ReportBuilder issue.

You can create the issue without just NexusDB (no ReportBuilder). See sample
code below.

I had the customer contact NexusDB support and they cited this as a Delphi
issue, noted in the following Delphi QC report:

http://qc.embarcadero.com/wc/qcmain.aspx?d=122136


Here is sample code to create the issue:

procedure TForm1.Button3Click(Sender: TObject);
var
lValue: Extended;
begin

// calling AsExtended or AsFloat --> AV
lValue := nxQuery1.FieldByName('TestField').AsExtended;

// these also result in AV
// lValue := nxQuery1.FieldByName('TestField').AsFloat;
// lValue := nxQuery1.Fields[0].AsExtended;
// lValue := nxQuery1.Fields[0].AsFloat;


end;






-
Nard Moseley
Digital Metaphors
www.digital-metaphors.com


"Joe Hutchins" wrote in message news:53a1a191$1@mail....

I've upgraded to version 15.04 of ReportBuilder Pro. I still get the Access
Violation error. The problem seems to be between ReportBuilder and NexusDB.
I'm using version 4.0005 of NexusDB. The field that is causing the error is
defined as type "Extended" in NexusDB. I'm using a TppReport with a
TppDBPipeLine, connected to a TDataSource, connected to the TnxTable. I
have no problem printing other fields from the table; however, when I
attempt to add the "Extended" field to the report I get the Access
Violation. In the ReportBuilder datatree the field is defined as type
"double", but that is what was defined in the datatree with the older
version software. (ReportBuilder 14.06 and NexusDB 3.04 - Delphi 2010).

If I build a file using KbmMemTable and copy the data from the NexusDB table
to the KbmMemTable the report will work; however, it won't work printing
directly from the NexusDB Table.

It is difficult to send you a simple example since it only comes up with
ReportBuilder printing from NexusDB. I'm unable to print an "extended" type
field from a NexusDB table. I don't know if the error is from ReportBuilder
or from NexusDB (or me).

Any help or suggestions is appreciated.

Joe Hutchins