Read XML file using Xml.Xpath and Xml.Linq

I am trying to read the following XML file:

<?xml version="1.0" encoding="utf-8"?>
<Connection name="default">
  <Attribute name="server" value="localhost" />
  <Attribute name="database" value="mp" />
  <Attribute name="uid" value="root" />
  <Attribute name="password" value="m123" />
  <Attribute name="code" value="MK" />
</Connection>

With the following code:

        var doc = XDocument.Load("DBConnect.xml");
        var values = doc.XPathSelectElements("//Connection[@name='default']");
        foreach (var item in values)
        {
            foreach (var att in item.Elements("Attribute"))
            {
                _server = att.Attribute("server").Value;
                _database = att.Attribute("database").Value;
                _uid = att.Attribute("uid").Value;
                _password = att.Attribute("password").Value;
                _code = att.Attribute("code").Value;
            }
        }

However, I don't seem to be getting the correct output. I am getting an error message which tells me _server is null. Any idea why? I don't think I am correctly referencing the XML attribute values I want to get a hold of.