Unable to deserialize ArrayOfString back to List<string> in C# - linq

Question

I have seen this question asked, but have not found answers that work so I am asking it again.
I have a restful web service with a POST method that returns a serialized List.
<ArrayOfstring xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
<string>QoL5vA8OKgydWIn%2fdWiu70nobBrJo4N9iXeHmtM7Aj4%3d</string>
<string>vxHyJiSSSvDSZWXOdcfl5FMQC97xxGEWDO8Zy8Qp3X5CwADUbEE8ifACQHR1n7uamEaIUbf85ZuBDB8FFCNY2tJAMJ2jNw09SqGVTpMU5uI06DLtuYnJqsPIF735NOhlvRhBLPnpp62DFMCVsDNHy55UBF3Ggi06ZWTiJ8LTYIf3FYiFLPpXLZ1wWeE5chAWQGfz7zDYJa1OgSZ</string>
<string>OqGAT7Yqe6DfyVD29BeIXFyGtabVCloaC9FA1Fp20JkJ9T17ZzyqhnGxwWda7FqqyJUM8YK9OdcOCgTYrl4JxalECdtJm75TdSG8IAPQlFHp6Gidg4EwZaO9FKahlYMm5JrFpxTmLrdLgMAkYEV7gIR6zIyIByAGwYYDDwH3QCHrym3CuueRnFWAHCJu1LJbx0zRtt7g3yEaTiJ</string>
</ArrayOfstring>
The code performing the call is as follows below.
XDocument xDocResponse = RestPOSTToXDocument(szBaseUri, szInput);
string szNamespace = xDocResponse.Root.Name.Namespace.ToString();
IXmlUtils utility = new XmlUtils();
List<string> lst = utility.DeserializeList<string>(xDocResponse, szNamespace);
I have also attempted a different version of the call as shown below.
List<List<string>> lst = utility.DeserializeList<List<string>>(xDocResponse, szNamespace);
Both versions of the calls generate the error provided below.
An exception of type 'System.InvalidOperationException' occurred in System.Xml.dll but was not handled in user code
Additional information: There is an error in XML document (0, 0).
My Deserialize method is provided below.
public List<T> DeserializeList<T>(XDocument doc, string szNamespace)
{
List<T> result = null;
XmlSerializer serializer = new XmlSerializer(typeof(List<T>), szNamespace);
using (System.Xml.XmlReader reader = doc.CreateReader())
{
result = (List<T>)serializer.Deserialize(reader);
}
return result;
}
The XML within the XDocument is valid, so I do not understand why this error is being generated. Also, even if I attempt to get the elements via navigation in the XDocument, it does not work. If I look at the doc.Root.value, it appears that all of the strings are concatenated together into a single string.
Does anyone have any information on how I may deserialize this XDocument into a List?

Answer 1

Thanks to the assistance of mellamokb, I found the problem. When my List is serialized, it is serialized into an ArrayOfstring. If I take the XML and replace ArrayOfstring with ArrayOfString, the deserialization works.
This does not make much sense. I would welcome an explanation of why this is necessary though it may have something to do with String vs string.
Essentially, I had to do the following:
string szXml = xDocResponse.ToString();
int nEndRoot = szXml.IndexOf(">");
szXml = szXml.Replace("ArrayOfstring", "ArrayOfString");
xDocResponse = utility.LoadXDocument(szXml);
string szNamespace = xDocResponse.Root.Name.Namespace.ToString();
List<string> lst = utility.DeserializeList<string>(xDocResponse, szNamespace);

Answer 2

Simply get the response stream and deserealize into string array and store it to List
Code Snippet:
List<string> listNew=new List<string>();
using (Stream answer = webResponse.GetResponseStream())
{
DataContractSerializer xmlSer = new DataContractSerializer(typeof(string[]));
var stringArr= (string[])xmlSer.ReadObject(answer);
foreach (string item in GenreList)
{
listNew.Add(item);
}
}