Delphi 7 :: Rave Report - Several Reports Print in ONE spool JOB

Also note that it is the same report that I print, just with different field values.
Thanks.

and different report parameters.

Ok what I have done, was to call the rvSystem.Execute method in the in the OnPrint() I ran my code which check what should be printed or not. Just, or nearly, like nevrona's example.

But the problem is I get blank pages printed.
In the OnPrint() event's code I have a condition and when true then it should print but it prints for each loop whether condition true or not. Is this normal?

Check my OnPrint() code:

procedure TfrmMain.rvSystemPrint(Sender: TObject);
var
  X :Integer;
begin
  For X := 0 to slStillagePrintList.Count - 1 do
  begin
    Try
      //Print the stillage labels if AutoPrintSL is flagged on
      qStillages.SQL.Text := 'SELECT S.BarCode, S.POrderNumber, S.Sequence, S.TheirDateTime, S.ItemNumber, S.ItemDescription, '+
        'S.PartTypeNumber, P.StillageQty, P.PrintBOMSL ' +
        'FROM tblStillages S LEFT OUTER JOIN tblPartTypes P ON S.PartTypeNumber = P.PartTypeNumber '+
        'WHERE (BarCode = :BarCode) AND (S.SLPrinted = 0) AND (P.AutoPrintSL = 1) '+
        'ORDER BY TheirDateTime, Sequence';
      qStillages.Parameters.ParamByName('BarCode').Value := Trim(slStillagePrintList.Strings[X]);
      qStillages.Open; qStillages.Last; qStillages.First;
      If not qStillages.IsEmpty then
      begin
        qStillageBoms.Open;
        
        rvSystem.DefaultDest := rdPrinter;
        rvSystem.SystemSetups := rvSystem.SystemSetups - [ssAllowSetup];
 
        rvProject.Open;
        rvProject.SelectReport('repStillageLabel', False);
        rvProject.SetParam('Date', DateToStr(Date));
        rvProject.SetParam('Time', TimeToStr(Time));
        rvProject.SetParam('PartType', qStillages.FieldByName('PartTypeNumber').AsString);
        rvProject.SetParam('StillageQty', qStillages.FieldByName('StillageQty').AsString);
        rvProject.SetParam('BarCode', qStillages.FieldByName('BarCode').AsString);
        rvProject.Execute;
 
        //Mark this SL as printed.
        qUpdate.SQL.Text := 'UPDATE tblStillages SET SLPrinted = 1 WHERE BarCode = :BarCode';
        qUpdate.Parameters.ParamByName('BarCode').Value := slStillagePrintList.Strings[X];
        qUpdate.ExecSQL;
 
        WriteToLog(logAttention, 'Stillage Label Printed: ' + slStillagePrintList.Strings[X]);
 
        If X <> slStillagePrintList.Count - 1 then TBaseReport(Sender).NewPage;
      end;
      lsbPrinter.Selected[X] := True;
    Except
      On E:Exception do
      begin
        WriteToLog(logError, E.Message);
      end;
    end;
  end;
end;

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Let me put it a little clearer.

I am doing as nevrona says. Do my printing in the OnPrint() event.
But I have procedure outside from the event which does some processing and when finished it calls the
rvSystem.Execute method.

But the problem is, not every call to rvSystem.Execute will have printable information. Therefore the condition see: Line 16 in code snippet above....
Printing should only occur when there are results in the dataset. But what currently happens is when the result is empty then it prints a blank page. Why this? All the code that relevant to printing is inside this If condition.

Please help.

Hi,

The problem is not my code, I believe.

I have build a demo application, with a TrvSystem and TrvProject component which are linked.
Added a TButton on the form.
The buttons OnClick() event has the following code:
   rvSystem1.Execute.

I have assigned the Rave Report project to the TrvProject.ProjectFile and have click StoreRav.

No code exists in the rvSystem1.OnPrint() event.
But when clicking button then a blank pages prints.

Why so?


Help?

 Normally when I get blank pages the dataset is returning no records...  That can be due to not setting parameters or other issues.  It depends on what type of datasets you are using in Rave too.  First just create 3 form style reports that require no data.  All you have to do is put a shape, text box, etc on the report and save it.  Then, run your code calling those reports (so they print in one job).  This should work with no problems and indicate that there is nothing  wrong with your code.  You then need to figure out why your report has no records.