XML ASMX Service with 1 return value - not XDocument so How to Parse?

I am trying to return a value from an "XML Web Service" that I did not create. It is an ASMX service with the following return:

<?xml version="1.0"?> 
123

Where the value "123" varies depending on the parameters I feed the开发者_开发知识库 service. My question is, in C# (Silverlight), how can I parse this value?

var webClient = new WebClient();
webClient.DownloadStringCompleted += webClient_DownloadStringCompleted;
webClient.DownloadStringAsync(service);

I do not see an easy way to get to the value.

---

As John Saunders said, this is not XML, so you can't parse it as one.

If the format is always this simple, just get the second line and use that.

EDIT:

If it's just the second line you want to get, you can use something like:

string result = downloaded.Split('\n')[1];

---

That's not XML, so there's no way to parse it as XML.