XMLWorkerHelper ordered list style - itext

Question

I need to style ordered list elements in pdf generated from HTML. I know this is not supported http://demo.itextsupport.com/xmlworker/itextdoc/CSS-conformance-list.htm in way I tried:
ol li:before {
content: counter(cnt-1) ". ";
counter-increment: cnt-1
}
ol > li > ol > li > ol li:before {
content: counter(cnt-1) "." counter(cnt-2) "." counter(cnt-3);
counter-increment: cnt-3
}
Is there any solution to add processing ol attributes (content, counter, counter-increment) to itextsharp?

Answer 1

I processed nested ul elements with HtmlAgility + CSS before converting to PDF
ol { list-style-type:none; list-style:none;}
public string CustomOrderedListNumbering(StringBuilder sb, string xpathRoot)
{
HtmlDocument doc = new HtmlDocument() { OptionAutoCloseOnEnd = true };
HtmlNode.ElementsFlags.Remove("meta");
HtmlNode.ElementsFlags.Remove("link");
doc.LoadHtml(sb.ToString());
HtmlNodeCollection mainOls = doc.DocumentNode.SelectNodes(xpathRoot);
if (mainOls != null)
{
foreach (HtmlAgilityPack.HtmlNode node in mainOls)
{
Recursive(node, "", 1, 1);
}
}
string htmlMainPart = doc.DocumentNode.InnerHtml;
htmlMainPart = htmlMainPart.Replace("<br>", "<br />");
return htmlMainPart;
}
private void Recursive(HtmlNode nodeOl, string baseNum, int depth, int counter)
{
HtmlNodeCollection lis = nodeOl.ChildNodes;
foreach (var li in lis)
{
string num = baseNum + counter + ".";
var textNode = li.SelectSingleNode("./text()") as HtmlTextNode;
if (textNode == null)
{
textNode = li.SelectSingleNode("./*/text()") as HtmlTextNode;
}
textNode.Text = num + " " + textNode.Text;
var childOls = li.SelectNodes("ol[#class='number']");
if (childOls != null)
{
foreach (var cOl in childOls)
{
Recursive(cOl, num, depth + 1, 1);
}
}
counter++;
}
}