This will be failed in first loop, **how to get first TAG ?** **gtk_tree_model_get(model, &iter, SYMBOLS_COLUMN_TAG, &tag, -1);**
``` static void on_update_all_index(GtkWidget *widget, gpointer user_data) {
GtkTreeIter iter; GeanyDocument * doc = document_get_current(); gboolean cont = TRUE; gint line_num; gint index_chr = 0;
GtkTreeStore * store = doc->priv->tag_store; GtkTreeModel *model = GTK_TREE_MODEL(store);
unsigned int * seg = 0;
int count = 0; if (!gtk_tree_model_get_iter_first(model, &iter)){ return; } do { TMTag * tag; gtk_tree_model_get(model, &iter, SYMBOLS_COLUMN_TAG, &tag, -1); if(!tag){ cont = ui_tree_model_iter_any_next(model, &iter, TRUE); }else{ line_num = tag->line; #if 1 if(line_num >= 0){ index_chr++; //editor_udpate_chapter_index_quickly(doc->editor,index_chr,line_num); } #endif tm_tag_unref(tag); } } while (gtk_tree_model_iter_next(model, &iter)); } ```