I'm not sure I fully understand. But from what I gathered, may I suggest LINQ To XML? Something like:
<br />
var nodes = (from n in xml.Descendants("LstDelByRLDTResponseItem").Elements()<br />
select n);<br />
<br />
List<string> nodeNames = new List<string>();<br />
foreach (var node in nodes)<br />
{<br />
nodeNames.Add(node.Name.LocalName);<br />
}<br />
</string></string>
Code may not be exact but I just started learning LINQ To XML recently.
http://msdn.microsoft.com/en-us/library/bb387098.aspx[
^] -- For more information.