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PORe-using an existing GtkTreeView
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2013-02-14T01:07:21.133
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TL;DR: <code>assertion 'VALID_ITER (parent, tree_store)' failed</code>. How do I fix it? I've successfully displayed a GtkTreeView in my application with the following (trimmed) code: <pre><code>enum { DISPLAY_COLUMN, N_COLUMNS }; GValue comment = G_VALUE_INIT; GValue amount = G_VALUE_INIT; GtkTreeIter toplevel, child; GtkTreeStore *treestore = gtk_tree_store_new(N_COLUMNS, G_TYPE_STRING); for(int step = 0; step < recipe_count; step++) { g_value_init(&comment, G_TYPE_STRING); g_value_set_string(&comment, recipe[step].comment); gtk_tree_store_append(treestore, &toplevel, NULL); gtk_tree_store_set_value(treestore, &toplevel, COMMENT_COLUMN, &comment ); g_value_init(&amount, G_TYPE_STRING); g_value_set_string(&amount, recipe[step].amount); gtk_tree_store_append(treestore, &toplevel, &child); gtk_tree_store_set_value(treestore, &toplevel, COMMENT_COLUMN, &amount ); g_value_unset(&amount); g_value_unset(&comment); } gtk_tree_view_set_model(GTK_TREE_VIEW(app->step_tree),GTK_TREE_MODEL(treestore)); GtkCellRenderer *renderer = gtk_cell_renderer_text_new(); GtkTreeViewColumn *column = gtk_tree_view_column_new_with_attributes ("Step", renderer, "text", DISPLAY_COLUMN, NULL); gtk_tree_view_append_column(GTK_TREE_VIEW(app->step_tree), column); </code></pre> All of the above is wrapped up in a function, so that I can load new data again later. However, the second time I try to <pre><code>(recipe_editor:11451): Gtk-CRITICAL **: IA__gtk_tree_store_append: assertion `VALID_ITER (parent, tree_store)' failed (recipe_editor:11451): Gtk-CRITICAL **: IA__gtk_tree_store_set_value: assertion `VALID_ITER (iter, tree_store)' failed </code></pre> I know this means there's something wrong with my iterator(s), but I'm not sure how to actually fix it.
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<c++><gtk><gtktreeview>
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Re-using an existing GtkTreeView
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