Create or design own Preview Form using Fortes report

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In my last blog I have explained how to design Label reports by using Fortes Report and its components. In this blog I will show you how to design our own preview form using TRLPreview component that we can use to show saved report files in .rpf format. And for more detail about Fortes Report please visit Fortes Report and Components.

So now lets design Preview form with Fortes Report components.

1. First create a project and add a form to the project lets say Unit1 (Form1).

2. Add TRLPreview component to the form and set Align=alClient. And set following properties

RLPreview1: TRLPreview
  Left = 0
  Top = 22
  Width = 866
  Height = 488
  HorzScrollBar.Tracking = True
  VertScrollBar.Tracking = True
  Align = alClient
  TabOrder = 0

3. Add TToolbar component and set following properties. Here I have not used any Timagelist to show images in buttons but we can use.

ToolBar1: TToolBar
  Left = 0
  Top = 0
  Width = 866
  Height = 22
  AutoSize = True
  ButtonWidth = 105
  Caption = 'ToolBar1'
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -13
  Font.Name = 'Tahoma'
  Font.Style = []
  List = True
  ParentFont = False
  ShowCaptions = True

4. Then add following buttons to the toolbar to implement preview functions.

   tbOpen: TToolButton
    Left = 0
    Top = 0
    AutoSize = True
    Caption = 'Open'
    ImageIndex = 0
    OnClick = tbOpenClick
 
   tbSave: TToolButton
    Left = 46
    Top = 0
    AutoSize = True
    Caption = 'Save'
    ImageIndex = 2
    OnClick = tbSaveClick
 
   tbPrint: TToolButton
    Left = 90
    Top = 0
    AutoSize = True
    Caption = 'Print'
    ImageIndex = 2
    OnClick = tbPrintClick
 
   tbFirst: TToolButton
    Left = 132
    Top = 0
    AutoSize = True
    Caption = 'First Page'
    ImageIndex = 2
    OnClick = tbFirstClick
 
   tbprior: TToolButton
    Left = 205
    Top = 0
    AutoSize = True
    Caption = 'Prior Page'
    ImageIndex = 3
    OnClick = tbpriorClick
 
   spinPage: TSpinEdit
    Left = 280
    Top = 0
    Width = 41
    Height = 26
    MaxValue = 0
    MinValue = 0
    TabOrder = 0
    Value = 0
    OnChange = spinPageChange
 
   tbNext: TToolButton
    Left = 321
    Top = 0
    AutoSize = True
    Caption = 'Next Page'
    ImageIndex = 4
    OnClick = tbNextClick
 
   tblast: TToolButton
    Left = 394
    Top = 0
    AutoSize = True
    Caption = 'Last Page'
    ImageIndex = 5
    OnClick = tblastClick
 
   tbZoomin: TToolButton
    Left = 465
    Top = 0
    AutoSize = True
    Caption = 'Zoom +'
    ImageIndex = 6
    OnClick = tbZoominClick
 
   tbZoomOut: TToolButton
    Left = 525
    Top = 0
    AutoSize = True
    Caption = 'Zoom -'
    ImageIndex = 7
    OnClick = tbZoomOutClick
 
   tbZoomFullPage: TToolButton
    Left = 582
    Top = 0
    AutoSize = True
    Caption = 'Zoom Full Page'
    ImageIndex = 8
    OnClick = tbZoomFullPageClick
 
   tbZoomFullWidth: TToolButton
    Left = 686
    Top = 0
    AutoSize = True
    Caption = 'Zoom Full Width'
    ImageIndex = 9
    OnClick = tbZoomFullWidthClick
 
   tbExit: TToolButton
    Left = 795
    Top = 0
    AutoSize = True
    Caption = 'Exit'
    ImageIndex = 1
    OnClick = tbExitClick

5. Put report filter components on form to save report in different format during preview

 RLRichFilter1: TRLRichFilter;
 RLPDFFilter1: TRLPDFFilter;
 RLXLSFilter1: TRLXLSFilter;
 RLHTMLFilter1: TRLHTMLFilter;

6. Add a procedure to open Fortes Report files on preview form.

    //TO SHOW A REPORT FILE SAVE IN  .RFP FORMAT//
procedure TForm1.ShowreportFile(sFile: string);
begin
  if sFile <> '' then
  begin
    RLPreview1.Pages := Nil;
    RLPreview1.Pages := TRLGraphicStorage.Create(Self);
    RLPreview1.Pages.LoadFromFile(sFile);

    RLPreview1.PageNumber := RLPreview1.Pages.FirstPageNumber;
    RLPreview1.ZoomFactor := 100;
    RLPreview1.ZoomFullWidth;

    spinPage.Value := RLPreview1.PageNumber;
    spinPage.MinValue := RLPreview1.Pages.FirstPageNumber;
    spinPage.MaxValue := RLPreview1.Pages.LastPageNumber;
  end;
end;

7. Open button click event

 procedure TForm1.tbOpenClick(Sender: TObject);
begin
  if OpenDialog1.Execute then
  begin
    ShowreportFile(OpenDialog1.FileName);
    Caption := 'Preview -> '+ OpenDialog1.FileName;
  end;
end;
  
8. Save button click event. For this add RLSaveDialog Fortes report unit to uses clause to access TRLSaveDialog form.

procedure TForm1.tbSaveClick(Sender: TObject);
var
  SaveDlg: TRLSaveDialog;
  SaveFilter: TRLCustomSaveFilter;
begin
  SaveDlg := TRLSaveDialog.CreateNew(Nil);
  SaveDlg.FromPage := RLPreview1.Pages.FirstPageNumber;
  SaveDlg.ToPage := RLPreview1.Pages.LastPageNumber;
  if SaveDlg.Execute then
  begin
    if SelectedFilter <> Nil then
      SaveFilter := TRLCustomSaveFilter(SelectedFilter)
    else
      SaveFilter := SaveFilterByFileName(SaveDlg.FileName);

    if SaveFilter <> Nil then
    begin
      SaveFilter.FileName := SaveDlg.FileName;
      SaveFilter.FilterPages(RLPreview1.Pages, SaveDlg.FromPage, SaveDlg.ToPage, '', 0);
    end
    else
      RLPreview1.Pages.SaveToFile(SaveDlg.FileName);
  end;
end;

9. Print button click event. For this add RLPrintDialog Fortes report unit to uses clause to access TRLPrintDialog form.

procedure TForm1.tbPrintClick(Sender: TObject);
var
  PrintDialog: TRLPrintDialog;
begin
  PrintDialog := TRLPrintDialog.CreateNew(Nil);
  PrintDialog.FromPage := RLPreview1.Pages.FirstPageNumber;
  PrintDialog.ToPage := RLPreview1.Pages.LastPageNumber;
  if PrintDialog.Execute then
  begin
    FilterPages(RLPreview1.Pages, Nil, PrintDialog.FromPage, PrintDialog.ToPage, PrintDialog.PageRanges, 0);
  end;
end;

10. First button click event.

procedure TForm1.tbFirstClick(Sender: TObject);
begin
  RLPreview1.FirstPage;
  spinPage.Value := RLPreview1.PageNumber;
end;

11. Prior button click event.

procedure TForm1.tbpriorClick(Sender: TObject);
begin
  RLPreview1.PriorPage;
  spinPage.Value := RLPreview1.PageNumber;
end;

12. Next button click event.

procedure TForm1.tbNextClick(Sender: TObject);
begin
  RLPreview1.NextPage;
  spinPage.Value := RLPreview1.PageNumber;
end;

13. Last button click event.

procedure TForm1.tblastClick(Sender: TObject);
begin
  RLPreview1.LastPage;
  spinPage.Value := RLPreview1.PageNumber;
end;

14. ZoomIn button click event.

procedure TForm1.tbZoominClick(Sender: TObject);
begin
  RLPreview1.ZoomFactor := RLPreview1.ZoomFactor+10;
  RLPreview1.ZoomIn();
end;

15. ZoomOut button click event.

procedure TForm1.tbZoomOutClick(Sender: TObject);
begin
  RLPreview1.ZoomFactor := RLPreview1.ZoomFactor-10;
  RLPreview1.ZoomOut();
end;

16. ZoomFullPage button click event.

procedure TForm1.tbZoomFullPageClick(Sender: TObject);
begin
  RLPreview1.ZoomFullPage;
end;

17. ZoomFullWidth button click event.

procedure TForm1.tbZoomFullWidthClick(Sender: TObject);
begin
  RLPreview1.ZoomFullWidth;
end;

18. Exit button click event.

procedure TForm1.tbExitClick(Sender: TObject);
begin
  Close;
end;

19. Spin Edit Page change.

procedure TForm1.spinPageChange(Sender: TObject);
begin
  RLPreview1.PageNumber := spinPage.Value;
end;

20. On Form Close.

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  Action :=  caFree;
end;

After all the code changes now run the application


Now click on Open and select a saved Fortes Report file in .rpf format to preview.
Create or design simple master report with Fortes Report

 Create or Design master detail report with Fortes Report 

 Create or Design reports with Groups in Fortes Report 

 Create or design Labels with Fortes Report 

Comments

  1. UnknownSeptember 14, 2019 at 5:44 PM

    How I can make a report type master-detil-detail-detail- ...

    ReplyDelete

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