AlgoliaSearch.HTMLBinding.OnTextChangedCallback C# (CSharp) Méthode

        private static void OnTextChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            TextBlock textBlock = d as TextBlock;
            if (textBlock == null)
            {
                return;
            }
            string text = GetText(textBlock);

            if (string.IsNullOrEmpty(text))
            {
                return;
            }

            Brush brush = GetHighlightBrush(textBlock) ?? new SolidColorBrush(Colors.Red);

            int lastIndex = 0;
            int index = text.IndexOf("<b>", 0, StringComparison.CurrentCulture);

            textBlock.Inlines.Clear();
            while (index >= 0)
            {
                textBlock.Inlines.Add(new Run { Text = text.Substring(lastIndex, index - lastIndex) });
                int endIndex = text.IndexOf("</b>", index + 3, StringComparison.CurrentCulture);
                textBlock.Inlines.Add(new Run { Text = text.Substring(index + 3, endIndex - index - 3), Foreground = brush });
                lastIndex = endIndex + 4;
                index = text.IndexOf("<b>", lastIndex, StringComparison.CurrentCulture);
            }
            textBlock.Inlines.Add(new Run { Text = text.Substring(lastIndex) });
        }