Erase a row from a Gtkmm::Table - c++

Question

How do I erase a row from a Gtkmm::Table in C++?
Documentation is really poor :-(. I have tried using resize() with no effect, and also calling remove at a Gtk::Widget& that I obtained through get_children(), but the I get segfault...

Answer 1

If Gtkmm::Table is GtkTable then gtk_container_remove should, probably, do what you need. I've made a small example (see below) it removes all label widget from the table container.
#include <gtk/gtk.h>
void remove_widgets(GtkWidget *widget, gpointer data)
{
if (GTK_IS_LABEL(widget))
{
g_print("remove label\n");
gtk_container_remove(GTK_CONTAINER(data), widget);
}
}
void remove_rows(GtkWidget *button, GtkWidget* data)
{
g_print("remove rows with labels\n");
gtk_container_foreach(GTK_CONTAINER(data), remove_widgets, data);
}
int main( int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *table;
gtk_init(&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
gtk_widget_set_size_request (window, 300, 250);
gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
gtk_window_set_title(GTK_WINDOW(window), "Test Table Remove");
gtk_container_set_border_width(GTK_CONTAINER(window), 15);
table = gtk_table_new(3, 2, FALSE);
gtk_table_set_col_spacings(GTK_TABLE(table), 3);
GtkWidget *label0 = gtk_label_new("Test Label 0");
gtk_table_attach(GTK_TABLE(table), label0, 0, 1, 0, 1, GTK_FILL, GTK_FILL, 0, 0);
GtkWidget *label1 = gtk_label_new("Test Label 1");
gtk_table_attach(GTK_TABLE(table), label1, 1, 2, 0, 1, GTK_FILL, GTK_FILL, 0, 0);
GtkWidget *label2 = gtk_label_new("Test Label 3");
gtk_table_attach(GTK_TABLE(table), label2, 0, 1, 1, 2, GTK_FILL, GTK_FILL, 0, 0);
GtkWidget *label3 = gtk_label_new("Test Label 4");
gtk_table_attach(GTK_TABLE(table), label3, 1, 2, 1, 2, GTK_FILL, GTK_FILL, 0, 0);
GtkWidget *button0 = gtk_button_new_with_label("Remove Labels");
gtk_widget_set_size_request(button0, 70, 30);
gtk_table_attach(GTK_TABLE(table), button0, 0, 1, 2, 3, GTK_FILL, GTK_FILL, 0, 0);
g_signal_connect(G_OBJECT(button0), "clicked", G_CALLBACK(remove_rows), table);
gtk_container_add(GTK_CONTAINER(window), table);
g_signal_connect_swapped(G_OBJECT(window), "destroy", G_CALLBACK(gtk_main_quit), G_OBJECT(window));
gtk_widget_show_all(window);
gtk_main();
return 0;
}
hope this helps, regards