this.sortAvailableColumns = sortAvalableColumns;
}
@Override
public boolean doCommand(DisplayColumnChooserCommand command) {
ColumnChooser columnChooser = new ColumnChooser(command.getNatTable()
.getShell(), selectionLayer, columnHideShowLayer,
columnHeaderLayer, columnHeaderDataLayer,
columnGroupHeaderLayer, columnGroupModel, sortAvailableColumns);
columnChooser.setDialogSettings(dialogSettings);
columnChooser.openDialog();
return true;
}