无法从收到的XML文件中获取列表

Question

This is xml that I receive:

<?xml version="1.0" encoding="UTF-8"?>
<mdpr:Data xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mdpr="http://...">
<mdpr:contactList>
    <mdpr:contact ID="{123456}" classID="Customer">
      <mdpr:Name>data1</mdpr:Name>
      <mdpr:TransportCode>data2</mdpr:TransportCode>
      <mdpr:ZipCode>data3</mdpr:ZipCode>
      <mdpr:City>data4</mdpr:City>
    </mdpr:contact>
    <mdpr:contact ID="{234567}" classID="Customer">
      <mdpr:Name>data5</mdpr:Name>
      <mdpr:TransportCode>data6</mdpr:TransportCode>
      <mdpr:ZipCode>data7</mdpr:ZipCode>
      <mdpr:City>data8</mdpr:City>
    </mdpr:contact>
</mdpr:contactList>
...

Here is how I try to get all contacts:

public class Contact
    {
        public string Name { get; set; }
        public string TransportCode { get; set; }
    }
...
XDocument xdoc = XDocument.Load(doc.CreateNavigator().ReadSubtree());

            List<Contact> contacts = (from xml in xdoc.Elements("contactList").Elements("contact")
                                      select new Contact
                              {
                                  Name = xml.Element("Name").Value,
                                  TransportCode = xml.Element("TransportCode").Value
                              }).ToList();

But I get nothing. What am I doing wrong here?

Answer 1

try to specify namespace

string nmsp = "http://www.w3.org/2001/XMLSchema-instance/"

from xml in xdoc.Elements(nmsp+"contactList").Elements(nmsp + "contact")

Answer 2

You have mdpr namespace declared in your xml:

xmlns:mdpr="http://..."

but you are providing only local name of elements in query. Eg you provide contactList name, but full name of element is mdpr:contactList . That's why nothing is found.

You should define XNamespace for your namespace and use it to create full names of elements:

XNamespace mdpr = "http://...";
var contacts = from c in xdoc.Root.Element(mdpr + "contactList")
                                  .Elements(mdpr + "contact")
               select new Contact {
                   TransportCode = (string)c.Element(mdpr + "TransportCode"),
                   Name = (string)c.Element(mdpr + "Name")
               };

Also contactList is not the root of document. You should search it under Root .

Answer 3

XDocument xdoc = XDocument.Load(doc.CreateNavigator().ReadSubtree());
var ns = xdoc.Root.Name.Namespace;
List<Contact> contacts = (from xml in xdoc.Root.Elements(ns +"contactList").Elements(ns +"contact")
                          select new Contact
                  {
                      Name = xml.Element(ns +"Name").Value,
                      TransportCode = xml.Element(ns +"TransportCode").Value
                  }).ToList();