Access violation with TfrxDBDataset.UserName

xdelurionxdelurion
edited 8:18AM in FastReport 3.0
Hi everybody,

This code works well with FR3.19 ;)
All FR variables are created dynamically. 
FormShow :
...
  if not Assigned(frxDBDataset1) then
    frxDBDataset1 := TfrxDBDataset.Create (Self);

  frxDBDataset1.UserName        := 'frxDBDataset1';
  frxDBDataset1.CloseDataSource := False;

  if not Assigned(frxReport1) then
    frxReport1 := TfrxReport.Create (Self);

  frxReport1.DotMatrixReport         := False;
  frxReport1.PreviewOptions.Buttons  := [pbZoom, pbTools, pbNavigator];
  frxReport1.PreviewOptions.Zoom     := 1;
  frxReport1.PrintOptions.Printer    := 'Default';
  frxReport1.ScriptLanguage          := 'PascalScript';
  frxReport1.OnAfterPrint            := frxReport1AfterPrint;
  frxReport1.OnBeforePrint           := frxReport1BeforePrint;
  frxReport1.OnAfterPrintReport      := frxReport1AfterPrintReport;
  frxReport1.Datasets.Add(frxDBDataset1);
...

With FR3.21 the event BeforePrint is never called. ;)
With FR3.23 there's an access violation on 
frxDBDataset1.UserName        := 'frxDBDataset1';
;)

Who can explain me ?
Anybody has got the same phenomenon ?

Thank's a lot,
Xavier.

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