Ext.Net.AjaxRequestFilter.ExtractDynamicHtml C# (CSharp) Method

        private string ExtractDynamicHtml(string html)
        {
            StringBuilder sb = new StringBuilder(256);

            //MatchCollection m1 = Regex.Matches(html, string.Concat(XControl.TOP_DYNAMIC_CONTROL_TAG_S, "(.*?)", XControl.TOP_DYNAMIC_CONTROL_TAG_E), RegexOptions.Singleline);
            MatchCollection m1 = DynamicHtml_RE.Matches(html);

            foreach (Match m in m1)
            {
                sb.Append(m.Groups[1].Value);
            }

            return sb.ToString() ?? "";
        }