Missing Data in ppVariable in Preview & Print

rbuser

Hi,

Delphi 5 Pro
ReportBuilder 7.04

I have a user of a report that uses a ppDBPipeline and contains a
ppVariable using veTransverse that takes a first name field and a last
name field and combines the fields into a full name:

procedure TfrmWorker1.ppVariable2Calc(Sender: TObject; var Value: Variant);
var ownername : string;
begin
ownername := trim(vworker1.GetCField('first')) + ' ' +
trim(vworker1.GetCField('last'));
ppVariable2.Text := OwnerName;
end;

It works fine on my machine for both Preview & Printing but not theirs.
Since the database is created by the report, I had them send the file
to me. It does contain data in both fields but the 'calculated' name
does not appear on the report. What's even weirdier is they did a
'find' on a name, which was found and then the name appeared on the preview.

I have CharWrap and WordWrap = true. Any suggestions?

Marie

nicocizik

Hi Marie,

Try placing a break point inside the OnCalc event of ppVariable2 and check
the value of ownername after it is set. Also, be sure the ppVariable is set
to a String DataType and instead of setting the ppVariable2.Text property
you may just want to say Value := OwnerName.

--
Regards,

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

rbuser

Hi Nico,

That didn't resolve the problem. I did place a breakpoint in the
program and the 'ownername' is set correctly and shows correctly on my
machine but not the user's.

I'm attaching a zipfile which contains the following:
1 - var2.gif Object Inspector settings for ppVariable2 plus Design
screen of the report
2 - Preview.gif Preview screen of the report where all ppVariables
(1 & 2) are blank but the other fields are shown.
3 - actual.gif The preview report that is generated by the program on
my machine which shows all the correct values for the variables. The
user gets the Preview.gif version except for ppVariable1 which is shown
correctly.
4 - vWorker1.dfm & vWorker1.pas actual units I'm using the logic
employed by your 'Demos' and registering the report in the Main program.

I'm totally at a loss since I can't duplicate the problem on my machine
and the user is 500+ miles away. Any other suggestions?

Marie

rbuser

This is a multi-part message in MIME format.

nicocizik

Hi Marie,

For future reference, please send all attachments to
support@digital-metaphors.com.

Looking at the screenshots and provided code, I cannot see any problems that
would lead to this behavior. The fact that you are unable to recreate this
issue on your own machine leads me to believe that this is a data access
issue on your customer's end. ReportBuilder simply prints what you tell it
to. The only reason your customer would not be seeing any text would be
that the TppVariable.Visible is set to False (which it is not) or the data
is not properly being retrieved in the OnCalc event.

--
Regards,

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

rbuser

Hi Nico,

Sorry about the attachment, it was my first time.

I know that the data exists on the user's machine, I had them send me
the file. I could re-write the code to build the ownername while
creating the database instead of using the ppVariable, but I'd like to
resolve this for the future. I'm going to try some things, like
dropping the Char & Word wraps. Do you think changing the 'Reset'
properties would make any difference?
If so, would this be correct?
ResetComponent := ppDBPipline
ResetType := veDataPipeline
The CalcType := veTraversal with CalcComponent := ppReport1, do you
think changing these to veDataPipelineTraversal & ppDBPipeline1
would help?

Any ideas for the 'data access issue'? Could it be a buffer problem?

Thanks for confirming that I didn't do something stupid in the code.

Marie

nicocizik

Hi Marie,

Changing the reset component should not affect the output in your case. I
would leave it where it is. Dropping the word wraps from the text may have
an effect but it should not cause the behavior you are getting.

Perhaps (if you are able to test with your user's computer) send them a test
app that just access the data in the same manner without using ReportBuilder
and see if they are able to see the correct output. This will isolate the
problem as ReportBuilder specific or not.

--
Regards,

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

rbuser

Hi Nico,

I sorta did what you suggested - I sent the user several versions of the
program to test the output of the report. Here's the results:
ppVariable2 Initial Settings: This didn't work - original program
CharWrap := True
WordWrap := True
CalcComponent :=
CalcType := veTraversal

ppVariable2 Settings: These combinations DID work
CharWrap := False
WordWrap := False
CalcComponent :=
CalcType := veTraversal

CharWrap := False
WordWrap := False
CalcComponent := ppDBPipeline1
CalcType := veDataPipelineTraversal

CharWrap := False
WordWrap := True
CalcComponent := ppDBPipeline1
CalcType := veDataPipelineTraversal

Conclusion - it seems that 'Wraping' was the problem - which doesn't
make sense to me. I sure hope it just wasn't the 'CharWrap'.

Marie

nicocizik

Hi Marie,

I believe we added the CharWrap feature for a very select group of users.
On my machine, the CharWrap feature does not function correctly unless
WordWrap is set to True as well, and AutoSize is set to false. I am still
as confused as you are about why this is not working on your user's
computer. I tried all your combinations below and in every one, I was at
least able to see the data. One not about your design... if you intend the
variable text to wrap, you will need to size the component vertically
because the TppVariable is incapable of stretching.

--
Regards,

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