How to read xml node value

Question

I'm have an xml file and am struggling to read value "my name" in c# can anyone help?

<?xml version="1.0" encoding="UTF-8" ?> 
<doc:SomeReport xsi:schemaLocation="urn:tes:doc:Fsur.0.97 C:\Documents%20and%20Settings\rty0403\Desktop\Smaple%20Sampling%20Schemas\Testdoc.doc.0.97.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bie3="urn:tes:data:CommonAggregates:0.97" xmlns:bie1="urn:tes:data:SampleAggregates:0.97" xmlns:doc="urn:tes:doc:Fsur.0.97">
  <doc:family>
    <doc:first>my name</doc:first> 
  </doc:family>
</doc:SomeReport>

How are you trying to read the value? Care to give a code sample? — alex
– alex, Commented May 12, 2011 at 6:31
here you go , matches does not bring anything. XmlDocument xdoc = new XmlDocument(); xdoc.Load(file); XmlNodeList matches = xdoc.SelectNodes("//First"); — melspring
– melspring, Commented May 12, 2011 at 6:42
Please update your question with any additional info you have. — Daniel Hilgarth
– Daniel Hilgarth, Commented May 12, 2011 at 6:43

Darin Dimitrov · Accepted Answer · 2011-05-12 06:44:05Z

1

You could use the XPathSelectElement method:

using System;
using System.Xml;
using System.Xml.Linq;
using System.Xml.XPath;

class Program
{
    static void Main()
    {
        using (var reader = XmlReader.Create("test.xml"))
        {
            var doc = XDocument.Load(reader);
            var nameTable = reader.NameTable;
            var namespaceManager = new XmlNamespaceManager(nameTable);
            namespaceManager.AddNamespace("doc", "urn:tes:doc:Fsur.0.97");
            var first = doc.XPathSelectElement("//doc:first", namespaceManager);
            Console.WriteLine(first.Value);
        }
    }
}

answered May 12, 2011 at 6:44

Darin Dimitrov

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1 Comment

melspring Over a year ago

Thanks Darin that works fine!!, just wondering whats the difference between using XDocument and XMLDocumnet like below XmlDocument xdoc = new XmlDocument(); xdoc.Load(file); XmlNamespaceManager man = new XmlNamespaceManager(xdoc.NameTable); man.AddNamespace("doc", "urn:tes:doc:Fsur.0.97"); XmlNodeList matches = xdoc.SelectNodes("//doc:first", man);

Community · Accepted Answer · 2017-05-23 11:55:36Z

1

Most probably, you forgot to define the namespace before trying to select the node.

See XML: Object reference not set to an instance of an object or How to select xml root node when root node has attribute? for more info.

edited May 23, 2017 at 11:55

CommunityBot

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answered May 12, 2011 at 6:42

Daniel Hilgarth

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Comments

alex · Accepted Answer · 2011-05-12 10:25:36Z

1

Here's one way to do it:

XElement xml = XElement.Load(fileName); // load the desired xml file
XNamespace aw = "urn:tes:doc:Fsur.0.97"; // this is the namespace in your xml

var firstName = xml.Element(aw + "family").Element(aw + "first").Value;

This will only get you one element of type family and one element of type first.

edited May 12, 2011 at 10:25

answered May 12, 2011 at 6:47

alex

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2 Comments

melspring Over a year ago

how do I pass a filename instead of text?

alex Over a year ago

@melspring: XElement xml = XElement.Load(filepath);

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