I have a problem when resizing the notebook The grid stays as it should when resizing horizontally, but distorts when expanded vertically. The parent/child relationship is as follows:

main
auto app = Gtk::Application::create(argc, argv, "my.gtkmm.spreadsheet");

 class NBkSprdSht : public Gtk::ApplicationWindow
       class MySprdSht : public Gtk::Frame
             Gtk::Box  m_VBox;    // container for HBox_1 & scrolled win
                  Gtk::ScrolledWindow  m_scrolled_window;  // container for HBox_2
                       Gtk::Box  m_HBox_2;   // container for the side & grid body
                            Gtk::Grid  m_grid_body;  // main spreadsheet body
                                 Gtk::Entry  *m_cell;  // cells in the grid body

<img src="/C/Users/jms_sr/Capture-1.PNG" alt="alt text" title="Title" />

<img src="/C/Users/jms_sr/Capture-2.PNG" alt="alt text" title="Title" />

The problem is I cannot seem to get the Gtk::Entry objects to stay fixed in size like the buttons do. Below is a code snippet where I attach my Gtk::Entry M_cell's:

<code>

m_grid_body.set_vexpand_set(false);
m_grid_body.set_vexpand(false);

m_scrolled_window.set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
m_scrolled_window.set_size_request( frame_Width, -1 );
m_scrolled_window.set_margin_end(left_margin);
m_scrolled_window.set_margin_bottom(0);
m_scrolled_window.set_shadow_type(Gtk::SHADOW_ETCHED_OUT);
m_scrolled_window.set_name("scrolled-window");
m_VBox.set_orientation(Gtk::ORIENTATION_VERTICAL);
m_VBox.set_homogeneous(false);
m_VBox.set_vexpand(false);
m_VBox.set_vexpand_set(false);
m_HBox_1.set_homogeneous(false);
m_HBox_2.set_homogeneous(false);
m_HBox_2.set_vexpand(false);
m_HBox_2.set_vexpand_set(false);

add( m_VBox );				// add m_VBox as child of MySprdSht

m_VBox.pack_start( m_HBox_1, Gtk::PACK_SHRINK, 0);
m_VBox.pack_start( m_scrolled_window, Gtk::PACK_EXPAND_WIDGET, 0);

m_scrolled_window.add( m_HBox_2 );

m_HBox_2.pack_start(m_grid_SideLbl, Gtk::PACK_SHRINK, 0);
m_HBox_2.pack_start(m_grid_body, Gtk::PACK_SHRINK, 0);
	
// setup cells
for(r = 0; r < minrows; ++r) {
	for(c = 0; c < cols; ++c) {
		i = cols*r+c;
		m_grid_body.attach(m_cell[i], c, r, 1, 1);
		m_cell[i].set_input_purpose(Gtk::INPUT_PURPOSE_NUMBER);
		m_cell[i].set_max_length(WIDTH);
		m_cell[i].set_width_chars(WIDTH);
		m_cell[i].set_alignment(0.5);
		m_cell[i].set_vexpand_set(false);
		m_cell[i].set_vexpand(false);
		m_cell[i].set_name( "grid-body" );
	}
}

</code>