Geting SharePoint web service response in DataTable c#

Hi all,
Few days before I was exploring how to get SharePoint web service response in DataTable instead of XMLNode?. for example you are using SharePoint List.asmx web service and try to get all SharePoint List collection get this response in DataTable.
here is code snippet.

/// <summary>
/// Get SharePoint List collections using SharePoint web service
/// Instead of Xml response it return DataTable.
/// remove XML name space from web service response.
/// </summary>
/// <returns></returns>
public DataTable GetSharePointListCollection()
{
try
{
//ListService is SharePoint List.asmx List Instance.
XmlNode ndSPLists = ListService.GetListCollection();
//to remove xml Name spance.
Regex StripXmlnsRegex =new Regex(@"(xmlns:?[^=]*=[""][^""]*[""])",RegexOptions.IgnoreCase|RegexOptions.Multiline|RegexOptions.Compiled| RegexOptions.CultureInvariant);

//to find and replace short XmlNameSpace like z:,rs: from xmlresponse by GetListItems method
Regex removeShortNameSpace = new Regex(@"(?<lessthan><)(?<closetag>[/])?(?<shortname>\w+:)\s*", RegexOptions.IgnoreCase|RegexOptions.Multiline|RegexOptions.Compiled|RegexOptions.CultureInvariant);

//remove namespace xmlnls from result xml..
string xmlResponse = StripXmlnsRegex.Replace(ndSPLists.InnerXml, "");

//find and replace short XmlNameSpace like z:,rs: from responce with space..
xmlResponse = removeShortNameSpace.Replace(xmlResponse, delegate(Match m)
{
Group closetag = m.Groups["closetag"];
if (closetag.Length != 0)
{
return "</";
}
else
{
return "<";
}

});
//load xml from removed XmlNameSpace and short name of XmlNameSpace..
//XDocument xmlDoc = new XDocument();
//xmlDoc = XDocument.Parse(xmlResponse);
xmlResponse = "<Lists>" + xmlResponse + "</Lists>";
XDocument xdoc = XDocument.Parse(xmlResponse);

using (StringReader reader = new StringReader(xdoc.ToString()))
{
DataSet dsSPLists = new DataSet();
dsSPLists.ReadXml(reader);
if (dsSPLists.Tables.Count > 0)
{
return dsSPLists.Tables[0];
}
}

return null;
}
catch
{
throw;
}
}