frmOwner,
strsExistingItems,
"Import PDF from URL",
"PDF");
super._pnlIoChooser = new GfrPnlSelEdtIoChooserFileReaderUrlPdf(
(IGfrHandlerListenerPanelDialog) this);
super._pnlIoChooser.setLengths(
INT_WIDTH_LABEL, INT_WIDTH_CONTENT, INT_WIDTH_BUTTON);