Unable to parse xml string using Xdocument and Linq

Question

I would like to parse the below xml using XDocument in Linq.

<?xml version="1.0" encoding="UTF-8"?>
<string xmlns="http://tempuri.org/">
   <Sources>
      <Item>
         <Id>1</Id>
         <Name>John</Name>
      </Item>
      <Item>
         <Id>2</Id>
         <Name>Max</Name>
      </Item>
      <Item>
         <Id>3</Id>
         <Name>Ricky</Name>
      </Item>
   </Sources>
</string>

My parsing code is :

    var xDoc = XDocument.Parse(xmlString);
    var xElements = xDoc.Element("Sources")?.Elements("Item");
    if (xElements != null)
        foreach (var source in xElements)
        {
            Console.Write(source);
        }

xElements is always null. I tried using namespace as well, it did not work. How can I resolve this issue?

Michał Turczyn · Accepted Answer · 2019-09-27 06:49:54Z

1

Try below code:

string stringXml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><string xmlns=\"http://tempuri.org/\"><Sources><Item><Id>1</Id><Name>John</Name></Item><Item><Id>2</Id><Name>Max</Name></Item><Item><Id>3</Id><Name>Ricky</Name></Item></Sources></string>";
XDocument xDoc = XDocument.Parse(stringXml);
var items = xDoc.Descendants("{http://tempuri.org/}Sources")?.Descendants("{http://tempuri.org/}Item").ToList();

I tested it and it correctly shows that items has 3 lements :) Maybe you used namespaces differently (it's enough to inspect xDoc objct in object browser and see its namespace).

answered Sep 27, 2019 at 6:49

Michał Turczyn

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Ehsan Sajjad · Accepted Answer · 2019-09-27 07:14:51Z

1

You need to concatenate the namespace and can directly use Descendants method to fetch all Item nodes like:

XNamespace ns ="http://tempuri.org/";
var xDoc = XDocument.Parse(xmlString);
var xElements = xDoc.Descendants(ns + "Item");

 foreach (var source in xElements)
 {
     Console.Write(source);
 }

This prints on Console:

<Item xmlns="http://tempuri.org/">
  <Id>1</Id>
  <Name>John</Name>
</Item><Item xmlns="http://tempuri.org/">
  <Id>2</Id>
  <Name>Max</Name>
</Item><Item xmlns="http://tempuri.org/">
  <Id>3</Id>
  <Name>Ricky</Name>
</Item>

See the working DEMO Fiddle

answered Sep 27, 2019 at 7:14

Ehsan Sajjad

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