How do I set ListBox item font to bold? - Continued #2

It is better to continue with the original question. I posted a responce there that I think solves the problem.

You can try this programmatically in C#

using System.Windows;
using System.Windows.Controls;

namespace YourNamespace
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            // Call the method to set ListBox items font to bold
            SetListBoxItemFontBold();
        }

        private void SetListBoxItemFontBold()
        {
            foreach (var item in gLBx.Items)
            {
                ListBoxItem listBoxItem = gLBx.ItemContainerGenerator.ContainerFromItem(item) as ListBoxItem;
                if (listBoxItem != null)
                {
                    listBoxItem.FontWeight = FontWeights.Bold;
                }
            }
        }
    }
}