How to modify the text before preview in my report

Comments

• Shivan Germany

  May 2006 edited 3:00AM

  I have the same problem. I solved it more or less good with scripting by setting the height of the Memo:
  
  OnBeforePrint of the Memo:
  

  procedure memLine2OnBeforePrint(Sender: TfrxComponent);
  begin
         if <Rechnungsposition."GuestName"> = '' then
         begin
           memLine2.Height := 0;
         end else
         begin
           memLine2.Height := 0.50;
         end;
  end;
  

  
  It's not very nice, but it works... maybe there's a better solution?
• sharkmouse

  May 2006 edited 3:00AM

  thanks.but what i ask if before the preview,not before the print?
  whether before preview is the same as the before print?i do not think so?
  thanks again.
• Shivan Germany

  May 2006 edited 3:00AM

  if you're talking about the print preview, then yes, it won't be "visible"...
  
  Btw. I think there's another solution, too.
  in the OnGetData event --> set the component to invisible. (memo.visible := false)
  But I didn't try this yet.
• fox

  May 2006 edited 3:00AM

  Maybe this helps ...

  {
    This example shows a way to hide Barcode after userselection in main programm.
    I have two TfrxMasterData, one assigned to a not used subreport.
    So I can change the parent of TfrxBarCodeView like following ... 
  }
  procedure TrepList.BarcodeOn(ShowIt:boolean);
  var bc: TfrxBarCodeView;
      md: TfrxMasterData;
  begin
    bc:=frxReport1.FindObject('Barcode1') as TfrxBarCodeView;  
    if bc<>nil 
    then begin
      if ShowIt 
      then begin
        md:=frxReport1.FindObject('MyUsedMaster') as TfrxMasterData;
        bc.parent:=md
      end
      else begin
        md:=frxReport1.FindObject('MyHiddenMaster') as TfrxMasterData;
        bc.parent:=md
      end
    end
  end;