In Glade I made a grid 3x3 ad name it grid, I got instance of grid with
self.grid = self.builder.get_object("grid")
and then I want to add for example a button on that grid when some other button named toolbuttonadd is clicked
def on_toolbuttonadd_clicked(self, widget, data=None): button = Gtk.Button() self.grid.add(button)
and the problem is that button is not showing what evere I do. I even try with adding button to a box, with same result.