You can easily populate a DropDownList with the data from the xml file. Check out the code below:
XML File
hank
corry
david
james
C# CODE
XmlDocument doc = new XmlDocument();
doc.Load(Server.MapPath("Menu.xml"));
XmlNodeList nodeList = doc.SelectNodes("names/name");
foreach(XmlNode node in nodeList)
DropDownList1.Items.Add(new ListItem(node.SelectSingleNode("client").InnerText));