QuickReport Problem

I have use QuickReports may times, but not recently.
Can you try this?

Create new project, drop Quickreport, and use TQRExpr.
In Expression Wizard try to Select Dataset....

Ashok

But the problem is that my Datasets located in DataModule are not visible. The Select dataset list box is empty.
When i place some dataset on the same form as report it is visible in this listbox.
But I want to have datasets in data module
mokule

implementation

uses Unit2;   // replace Unit2 with name of your Data Module unit name here....

 mokule,

Do you have your data module unit name in implementation of your QuickReport form?

Ashok

Yes, I've got this declaration
Datasets are visible for TQRDBText but not for TQRExpr.
Have You got Delphi 7? Can You try the solutions You suggest?
mokule

Here at work, we have Delphi 7, but QuickReport components are not installed.

When I go home, I will try to fix the problem.

Ashok

Look at

http://www.lars.pl/ftp/Delphi/borland/faq/1787.HTM

Ashok

It has nothing to do with my problem

by reading the article, it seems to me that you
do not have to specify Datset for TQRExpr.

Only specify Dataset for TQuickRep component.

I have to try this at home.

Ashok

Never mind my previous post.

Ashok

you do have a dataset (ADOTable, ADOQuery, etc) on your form or in a datamodule, which is in the uses clause (after Interface)
right?

Yes,
I have datasets (ADOTable, ADOQuery, etc) in a datamodule, which is in the uses clause.
I've tried after Interface and implementation with no success.

I'll be grateful for any example using TQREpr with Dataset from other units, in Delphi7

Anybody using QuickReport in D7?

mokule

Missed shot :(

At least it did not cost anything for trying, right?

Ashok

Not quite, it costs time.
At the moment I think that I resign from using TQRExpr.
I must do the same using ADOQuery, though it costs me quite a lot of work.
Seems there is no choice :(
mokule

another workaround if you must (not using qrexpr) is to simply use a TQRLabel, and use the band's "beforeprint" event to populate the label.  e.g.  qrlabel1.caption := unit3.table1PRODUCTNAME.AsString;
if it's any consolation, I know there is a way to do QRExpr
does the quickreport have a "datamodule" (no.. not dataset)  property or something?

can u not simple type in (instead of select from a combo) like

datamodule1.adoquery1

?

(currently no delphi on hand)

to kretzschmar
  unfortunately it doesn't work

to calinutz
  by Your method I can use expressions with fields from only 1 dataset in a report , am i right?

mokule

mokule

If you give more detail about "what is your expression string?", someone can better help you.
I have never had to use QRExpr so I did not have any problem.

Whatever you are trying to do can be achieved by just using QRLabel.

Just like TheRealLoki suggested.

Have you tried  Jacco solution if you want to use QRExpr ?  (which is trying to use Datamodule at runtime)

Ashok

to cula99

can You be so kind and supply an example, what should I write in an Expression?
Suppose my datamodule is DM1 my table is atFirma and fields fir_nazwa1, fir_nazwa2
condition: atFirma IS NOT TQuickRep DataSet

I've tried
Expression := atFirma.fir_nazwa1+atFirma.fir_nazwa2;
or
Expression := DM1.atFirma.fir_nazwa1+DM1.atFirma.fir_nazwa2;

result Unknown function atFirma.fir_nazwa1 or Unknown function DM1.atFirma.fir_nazwa1

mokule

This is when atFirma IS TQuickRep DataSet

QuickReport1.DataSet := DM1.atFirma;

QRExpr1.Expression := atFirma.fir_nazwa1+atFirma.fir_nazwa2;

but if not try to use CompositeReport where will you assign atFirma to TQuickRep2.DataSet and join it with first

Čula

This not what I've expected, but thanks for Your efforts.

mokule