DisplayMember property of ListBox control

[Sammy]

Please consider the following code fragment:

// get a WSDL document from a given URL

HttpWebRequest request = (HttpWebRequest)
WebRequest.Create(ucWsdlUrlTextBox.Text);

HttpWebResponse response = (HttpWebResponse) request.GetResponse();

// load it into a WSDL XML document instance

iWsdlDocument.Load(response.GetResponseStream());

// bind data

ucWsdlBindingSource.DataSource =
iWsdlDocument.GetElementsByTagName("wsdl:types")[0].ChildNodes[0].ChildNodes;

ucTypesListBox.DisplayMember = "Attributes[\"name\"].Value";

The above doesn't work. Instead, the list box displays System.Xml.XmlElement
for every item. When I change DisplayMember property to one property only
(like Name for example) it works. How can I achieve what I want?

Thanks,

Sammy