AV in RB 7.04

rbuser

I have all my reports in packages and they all seem to work fine except for
one report. Occasionally when closing this one report I get an AV in
vcl50.bpl. This report uses the following components:

TppDPTeeChart
TppSubReport
TppImage

and several of the following components.
TppDBText
TppDBCalc
TppVariable

How can I figure out what is causing this crash? It appears to happen more
on my customers machines than on mine. The only piece that is in this
report that is not in any of my other reports is the TppDPTeeChart
component.

Thanks in advance for any help,
Rodger Van Kirk

nicocizik

Hi Rodger,

Are you able to stop on exceptions and trace the error? Which version of
TeeChart are you using? This is more than likely the destroy bug in
TeeChart that we discovered more than 3 years ago. Not to long ago, we
decided to research it again and were able to recreate the bug without using
ReportBuilder. This example has been sent to the Steema guys and they have
ensured that the issue will be resolved for the next release of their
product.

As a side note, when we were researching this, we found that the destroy
sequence was enhanced for TeeChart 7.0, fixing the bug in some cases. It
may be worth while to try using TeeChart 7.0 and see if that helps, although
I cannot guarentee that it will change anything.

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com

rbuser

Nico,

I have not turned on debugging DCU's yet. I am going to try that today. I
am using 7.0 version of TeeChart.
Which release is their next release? 7.01?

Rodger Van Kirk

nicocizik

Hi Rodger,

Yes, I believe their next release will be TeeChart 7.01.

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com

rbuser

Nico,

I tried turning on debug DCU's and I still got the same results the
exception just tells me its in the vcl50.bpl. I will keep trying to get
some more info on it. I think there is a beta 7.01 release I saw on their
web site. Do you have any additional information about the problems you saw
so that I can check and see if the fix is in that version?

Thanks,
Rodger

nicocizik

Hi Rodger,

In this TeeChart, are you using a TeeFunction? This is what seemed to cause
the error before, however the AV error you are receiving is not the error we
got. You might perhaps re-compiling and re-installing the RB\TeeChart
packages and see if that makes a difference. Also be sure you are not
pointing to any old .dcu's or bpl's that could be causing this issue. If
possible, please see if you can create a minimal example of a report that
causes this error (i.e. an empty report with a chart on it connected to the
DBDEMOS database) and send it in .zip format to
support@digital-metaphors.com.

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com

rbuser

Nico,

It appears Steema have release 7.01. I tried installing it and recompiling
my RB packages and I keep getting the following error. "Unit ppChrt was
compiled with a different version of Chart.TCustomChart" in file rbTC75.dpk

Is there a patch for RB 7.04 using TeeChart 7.01?

Thanks in advance,

Rodger Van Kirk

nicocizik

Hi Rodger,

Try pointing your library path toward the source directory and be sure there
are no .dcu files present for ppChrt. This should rebuild the rb .dcu's
with the new version of TeeChart.

The next version of RB 9 will support TeeChart 7.01.

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com

rbuser

Nico,

What is new in version 9?

Rodger Van Kirk

nicocizik

Hi Rodger,

Designer Enhancements
---------------------
. new Object Inspector
. new Undo/Redo support
. new Workspace grid and snap-to-grid support
. new Toolbar/ToolWindow architecture

Report Component Library (RCL) Enhancements
-------------------------------------------
. new Rotated Text support, added Angle property for text controls
. new Border property for all controls
. new Anchor property enables control to reposition itself when the layout
changes.
. new PageBreak component for advanced control over pagination
. enhanced RichText MailMerge to support display formats & multiple
datapipelines
. enhanced DBImage to support AutoSize
. enhanced RCL architecture supports registering popup menu and design
controls
. new Report level events that enable parameter initialization and SQL
modification.


Report Output Enhancements
--------------------------
. new PDF export

Data Access Enhancements
------------------------
. new Guid Field Type support
. new Guid Field Type data linking support

Report Engine Enhancements
----------------------------
. improved support for calculations performed in page footer
. improved support for detecting layouts which result in infinite page
generation.

DADE Enhancements*
------------------
. new Support for Guid Field Type Linking
. new SQLBuilder object for runtime sql manipulation

RAP Enhancements**
------------------
. new Report level events that enable parameter initialization and SQL
modification.
. new SQLBuilder class to dynamically modify sql

EndUser Guide Enhancements**
----------------------------
. new Learning to RAP Guide


* These features in ReportBuilder Professional and Enterprise only.
** These features in ReportBuilder Enterprise only.

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com