Creating report at runtime

Hi,

I would like to create a report at runtime with Delphi. I have a problem when I try to create report with GroupHeader and GroupFooter. If I call "DesingReport" I don't have a problem, but if I call "ShowReport" my group header and footer does'nt appear. This is my code :


procedure TfReportMaster.GenerateReport(aQuery : TPellucQuery);
var
lDSReport : TfrxDBDataset;
lReport : TfrxReport;
lPage : TfrxReportPage;
lPageHeader : TfrxPageHeader;
lMasterData : TfrxMasterData;
lGroupHeader : TfrxGroupHeader;
lGroupFooter : TfrxGroupFooter;
begin
//Cr?©ation du dataset pour le rapport
lDSReport := TfrxDBDataset.Create(Self);
lDSReport.DataSet := aQuery;
lDSReport.UserName := 'qryReport';
//Cr?©ation du rapport
lReport := TfrxReport.Create(Self);
lReport.DataSets.Add(lDSReport);
//Cr?©ation de la page
lPage := TfrxReportPage.Create(lReport);
lPage.CreateUniqueName;
lPage.SetDefaults;
//Initialise le format de papier
lPage.PaperSize := DMPAPER_LETTER;
//Initialise l'orientation du papier
lPage.Orientation := poLandscape;

//Cr?©ation de l'ent??te de la page
lPageHeader := TfrxPageHeader.Create(lPage);
lPageHeader.CreateUniqueName;
lPageHeader.SetBounds(0, 0, lPage.Width - 75.6, 44);
//Cr?©ation du m?©mo pour le titre du rapport
with TfrxMemoView.Create(lPageHeader) do
begin
CreateUniqueName;
Align := baCenter;
AutoWidth := True;
HAlign := haCenter;
SetBounds(0, 4, 0, 24);
Font.Size := 12;
Font.Style := [fsBold, fsUnderline];
Text := 'RAPPORT';
end;
//Cr?©ation du m?©mo pour le tri par
with TfrxMemoView.Create(lPageHeader) do
begin
CreateUniqueName;
Align := baCenter;
AutoWidth := True;
HAlign := haCenter;
SetBounds(0, 28, 0, 16);
Text := 'SORT BY';
end;



//Cr?©ation du MasterData
lMasterData := TfrxMasterData.Create(lPage);
with lMasterData do
begin
//Initialise le nom du MasterData
Name := 'MasterData1';
DataSet := lDSReport;
Height := 20;
end;
with TfrxMemoView.Create(lMasterData) do
begin
CreateUniqueName;
Align := baClient;
Frame.Typ := [ftLeft, ftRight, ftTop, ftBottom];
Text := 'DETAIL';
end;

//Group footer creation
lGroupFooter := TfrxGroupFooter.Create(lReport.Pages[0]);
lGroupFooter.Parent := lReport.Pages[0];
with lGroupFooter do
begin
CreateUniqueName;
SetBounds(0, 0, lPage.Width - 75.6, 20);
end;
with TfrxMemoView.Create(lGroupFooter) do
begin
CreateUniqueName;
Align := baClient;
Frame.Typ := [ftLeft, ftRight, ftTop, ftBottom];
Text := 'GROUP FOOTER';
end;

//Group header creation
lGroupHeader := TfrxGroupHeader.Create(lReport.Pages[0]);
lGroupHeader.Parent := lReport.Pages[0];
with lGroupHeader do
begin
CreateUniqueName;
SetBounds(0, 0, lPage.Width - 75.6, 20);
Condition := 'qryReport."CUSNUM"';
end;
with TfrxMemoView.Create(lGroupHeader[1]) do
begin
CreateUniqueName;
Align := baClient;
Frame.Typ := [ftLeft, ftRight, ftTop, ftBottom];
Text := 'GROUP HEADER';
end;
with TfrxMemoView.Create(lGroupHeader[1]) do
begin
CreateUniqueName;
AutoWidth := True;
SetBounds(8 , 32, 10, 16);
DataSet := lDSReport;
DataField := 'CUSNUM';
end;

//With this code, Groups does'nt appear
lReport.ShowProgress := True;
lReport.OldStyleProgress := True;
lReport.PrepareReport(True);
lReport.ShowPreparedReport;

//With this code, Groups appear
lReport.DesignReport;

lReport.Free;
lDSReport.Free;
end;

Please help me to resolve my problem
I use the latest FastReport Professionnal