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reading XML Element

Posted on 2011-09-19
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Last Modified: 2013-12-17


 i am trying to load the TopicName and Title from the below XML what i am missing?
below is my code.
i am trying to grab the `TopicName` how should i go after it and try different combination but somehow i am unable to get `TopicName` below is my source codee...

    XmlDocument xdoc = new XmlDocument();//xml doc used for xml parsing
    xdoc.Load(url);
    XmlNodeList xNodelst = xdoc.DocumentElement.SelectNodes("content");//reading node so that we can traverse thorugh the XML
    
    foreach (XmlNode xNode in xNodelst)        
    {
      //
    }

 
sample xml file

    <content type="application/xml">
     <CatalogItems xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="sitename.xsd">
            <CatalogSource Acronym="ABC" OrganizationName="ABC Corporation" />
            <CatalogItem Id="3212" CatalogUrl="urlname">
              <ContentItem xmlns:content="sitename.xsd" TargetUrl="url">
                <content:SelectionSpec ClassList="" ElementList="" />
                <content:Language Value="eng" Scheme="ISO 639-2" />
                <content:Source Acronym="ABC" OrganizationName="ABC Corporation" />
                <content:Topics Scheme="ABC">
                  <content:Topic TopicName="Marketing" />
                  <content:Topic TopiccName="Coverage" />
                </content:Topics>
              </ContentItem>
            </CatalogItem>
          </CatalogItems>
        </content>

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Question by:nisarkhan
6 Comments
 
LVL 15

Expert Comment

by:Minh Võ Công
ID: 36564457
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LVL 7

Author Comment

by:nisarkhan
ID: 36564470
i expect just more than  a link
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LVL 16

Accepted Solution

by:
Easwaran Paramasivam earned 250 total points
ID: 36564886
 Refer below snippet:
             
                       string sContent = File.ReadAllText(xmlfile);
                        StringReader DocumentReader = new StringReader(sContent);
                        XmlDocument xmlDoc = new XmlDocument();
                        xmlDoc.Load(DocumentReader);
                        ReferenceNodes = xmlDoc.GetElementsByTagName("content:Topic");
                       
                        foreach (XmlNode Node in ReferenceNodes)
                        {
                            if (Node.Attributes["TopicName"] != null)
                            {
                                string sTopicName = Node.Attributes["TopicName"].Value;
                            }
                        }
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LVL 14

Assisted Solution

by:binaryevo
binaryevo earned 100 total points
ID: 36569923
If you like LINQ here is another bit of code you can play with:


 
string filePath = HttpContext.Current.Server.MapPath(SettingsModel.XMLFileLocation + "MyXML.xml");
            if (File.Exists(filePath))
            {
                var xml = (from x in XElement.Load(filePath).Elements("MyXML") 
                           select new XMLModel
                           {
                               ID = x.Element("ID").Value,
                               Value = x.Element("Value").Value
                           });
                return xml;
            }

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Expert Comment

by:Easwaran Paramasivam
ID: 36571856
Below code returns Topic names.
using System;
using System.IO;
using System.Xml.Linq;
using System.Xml;
using System.Collections;

namespace TestApplication
{
    class Program
    {
        static void Main(string[] args)
        {
            string xmlfile = @"C:\Users\easwaranp\Desktop\test.xml";
            ArrayList arrResult = new ArrayList();
            string sContent = File.ReadAllText(xmlfile);
            StringReader DocumentReader = new StringReader(sContent);
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.Load(DocumentReader);
            XmlNodeList ReferenceNodes = xmlDoc.GetElementsByTagName("content:Topic");

            foreach (XmlNode Node in ReferenceNodes)
            {
                if (Node.Attributes["TopicName"] != null)
                {
                    string sTopicName = Node.Attributes["TopicName"].Value;
                    arrResult.Add(sTopicName);
                    
                }
            }

            foreach (string s in arrResult)
            {
                Console.WriteLine(s);

            }
            Console.Read();

        }
    }
}

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Assisted Solution

by:Fernando Soto
Fernando Soto earned 150 total points
ID: 36595465
Hi nisarkhan;

The following Linq to XML quesry will do what you need.

public void LoadXML( )
{
    XElement xdoc = XElement.Load( "C:/Working Directory/Catalog.xml" );
    XNamespace content = "sitename.xsd";

    var topics = ( from t in xdoc.Descendants( content + "Topic" )
                   select t.Attribute( "TopicName" ).Value ).Distinct( );

    foreach (string topic in topics)
    {
        DropDownList1.Items.Add(topic);                
    }
}

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Fernando
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