p->fields_tree_view = PSPP_SHEET_VIEW (get_widget_assert (builder, "fields"));
g_signal_connect (p->quote_combo, "changed",
G_CALLBACK (on_quote_combo_change), ia);
p->fields_tree_view = PSPP_SHEET_VIEW (get_widget_assert (builder, "fields"));
g_signal_connect (p->quote_combo, "changed",
G_CALLBACK (on_quote_combo_change), ia);